Home / 2,280.70-3,147.36-1,232.76

Finding the Fourth Proportional to 2,280.70, 3,147.36 and 1,232.76

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Solution

The fourth proportional to 2,280.70, 3,147.36 and 1,232.76 is: 1,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.70 : 3,147.36 = 1,232.76 : x
  2. Step 2: Convert to fraction form
    2,280.70/3,147.36 = 1,232.76/x
  3. Step 3: Cross multiply
    2,280.70x = 3,147.36 × 1,232.76
  4. Step 4: Simplify right side
    2,280.70x = 3,879,948.24
  5. Step 5: Solve for x
    x = 3,879,948.24/2,280.70
  6. Step 6: Final answer
    x = 1,701.21

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,281.70, 3,148.74 and 1,233.76
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.