Home / 1,565.62-2,159.92-1,441.28

Finding the Fourth Proportional to 1,565.62, 2,159.92 and 1,441.28

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Solution

The fourth proportional to 1,565.62, 2,159.92 and 1,441.28 is: 1,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.62 : 2,159.92 = 1,441.28 : x
  2. Step 2: Convert to fraction form
    1,565.62/2,159.92 = 1,441.28/x
  3. Step 3: Cross multiply
    1,565.62x = 2,159.92 × 1,441.28
  4. Step 4: Simplify right side
    1,565.62x = 3,113,049.50
  5. Step 5: Solve for x
    x = 3,113,049.50/1,565.62
  6. Step 6: Final answer
    x = 1,988.38

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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.