Home / 1,565.68-2,160.78-1,171.96

Finding the Fourth Proportional to 1,565.68, 2,160.78 and 1,171.96

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Solution

The fourth proportional to 1,565.68, 2,160.78 and 1,171.96 is: 1,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.68 : 2,160.78 = 1,171.96 : x
  2. Step 2: Convert to fraction form
    1,565.68/2,160.78 = 1,171.96/x
  3. Step 3: Cross multiply
    1,565.68x = 2,160.78 × 1,171.96
  4. Step 4: Simplify right side
    1,565.68x = 2,532,347.73
  5. Step 5: Solve for x
    x = 2,532,347.73/1,565.68
  6. Step 6: Final answer
    x = 1,617.41

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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.