Home / 2,280.77-3,147.47-1,232.84

Finding the Fourth Proportional to 2,280.77, 3,147.47 and 1,232.84

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Solution

The fourth proportional to 2,280.77, 3,147.47 and 1,232.84 is: 1,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.77 : 3,147.47 = 1,232.84 : x
  2. Step 2: Convert to fraction form
    2,280.77/3,147.47 = 1,232.84/x
  3. Step 3: Cross multiply
    2,280.77x = 3,147.47 × 1,232.84
  4. Step 4: Simplify right side
    2,280.77x = 3,880,305.01
  5. Step 5: Solve for x
    x = 3,880,305.01/2,280.77
  6. Step 6: Final answer
    x = 1,701.32

Related Problems

Find fourth proportional to 1,140.38, 1,573.73 and 616.42
Half scale
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Double scale
Find fourth proportional to 2,281.77, 3,148.85 and 1,233.84
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.