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Finding the Fourth Proportional to 2,565.56, 3,538.70 and 1,569.56

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Solution

The fourth proportional to 2,565.56, 3,538.70 and 1,569.56 is: 2,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.56 : 3,538.70 = 1,569.56 : x
  2. Step 2: Convert to fraction form
    2,565.56/3,538.70 = 1,569.56/x
  3. Step 3: Cross multiply
    2,565.56x = 3,538.70 × 1,569.56
  4. Step 4: Simplify right side
    2,565.56x = 5,554,201.97
  5. Step 5: Solve for x
    x = 5,554,201.97/2,565.56
  6. Step 6: Final answer
    x = 2,164.91

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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.