Home / 3,562.14-4,915.86-1,990.32

Finding the Fourth Proportional to 3,562.14, 4,915.86 and 1,990.32

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Solution

The fourth proportional to 3,562.14, 4,915.86 and 1,990.32 is: 2,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.14 : 4,915.86 = 1,990.32 : x
  2. Step 2: Convert to fraction form
    3,562.14/4,915.86 = 1,990.32/x
  3. Step 3: Cross multiply
    3,562.14x = 4,915.86 × 1,990.32
  4. Step 4: Simplify right side
    3,562.14x = 9,784,134.48
  5. Step 5: Solve for x
    x = 9,784,134.48/3,562.14
  6. Step 6: Final answer
    x = 2,746.70

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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.