Home / 1,562.28-2,155.98-1,039.26

Finding the Fourth Proportional to 1,562.28, 2,155.98 and 1,039.26

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Solution

The fourth proportional to 1,562.28, 2,155.98 and 1,039.26 is: 1,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.28 : 2,155.98 = 1,039.26 : x
  2. Step 2: Convert to fraction form
    1,562.28/2,155.98 = 1,039.26/x
  3. Step 3: Cross multiply
    1,562.28x = 2,155.98 × 1,039.26
  4. Step 4: Simplify right side
    1,562.28x = 2,240,623.77
  5. Step 5: Solve for x
    x = 2,240,623.77/1,562.28
  6. Step 6: Final answer
    x = 1,434.20

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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.