Home / 1,569.72-2,166-1,251.49

Finding the Fourth Proportional to 1,569.72, 2,166 and 1,251.49

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Solution

The fourth proportional to 1,569.72, 2,166 and 1,251.49 is: 1,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.72 : 2,166 = 1,251.49 : x
  2. Step 2: Convert to fraction form
    1,569.72/2,166 = 1,251.49/x
  3. Step 3: Cross multiply
    1,569.72x = 2,166 × 1,251.49
  4. Step 4: Simplify right side
    1,569.72x = 2,710,721.93
  5. Step 5: Solve for x
    x = 2,710,721.93/1,569.72
  6. Step 6: Final answer
    x = 1,726.89

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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.