Home / 1,562.28-2,153.68-1,282.12

Finding the Fourth Proportional to 1,562.28, 2,153.68 and 1,282.12

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Solution

The fourth proportional to 1,562.28, 2,153.68 and 1,282.12 is: 1,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.28 : 2,153.68 = 1,282.12 : x
  2. Step 2: Convert to fraction form
    1,562.28/2,153.68 = 1,282.12/x
  3. Step 3: Cross multiply
    1,562.28x = 2,153.68 × 1,282.12
  4. Step 4: Simplify right side
    1,562.28x = 2,761,276.20
  5. Step 5: Solve for x
    x = 2,761,276.20/1,562.28
  6. Step 6: Final answer
    x = 1,767.47

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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.