Home / 2,318.52-3,200.46-1,387.32

Finding the Fourth Proportional to 2,318.52, 3,200.46 and 1,387.32

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Solution

The fourth proportional to 2,318.52, 3,200.46 and 1,387.32 is: 1,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.52 : 3,200.46 = 1,387.32 : x
  2. Step 2: Convert to fraction form
    2,318.52/3,200.46 = 1,387.32/x
  3. Step 3: Cross multiply
    2,318.52x = 3,200.46 × 1,387.32
  4. Step 4: Simplify right side
    2,318.52x = 4,440,062.17
  5. Step 5: Solve for x
    x = 4,440,062.17/2,318.52
  6. Step 6: Final answer
    x = 1,915.04

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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.