Home / 2,280.13-3,146.58-1,232.20

Finding the Fourth Proportional to 2,280.13, 3,146.58 and 1,232.20

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Solution

The fourth proportional to 2,280.13, 3,146.58 and 1,232.20 is: 1,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.13 : 3,146.58 = 1,232.20 : x
  2. Step 2: Convert to fraction form
    2,280.13/3,146.58 = 1,232.20/x
  3. Step 3: Cross multiply
    2,280.13x = 3,146.58 × 1,232.20
  4. Step 4: Simplify right side
    2,280.13x = 3,877,200.14
  5. Step 5: Solve for x
    x = 3,877,200.14/2,280.13
  6. Step 6: Final answer
    x = 1,700.43

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Double scale
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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.