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Finding the Fourth Proportional to 1,726.75, 2,590.19 and 572.47

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Solution

The fourth proportional to 1,726.75, 2,590.19 and 572.47 is: 858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.75 : 2,590.19 = 572.47 : x
  2. Step 2: Convert to fraction form
    1,726.75/2,590.19 = 572.47/x
  3. Step 3: Cross multiply
    1,726.75x = 2,590.19 × 572.47
  4. Step 4: Simplify right side
    1,726.75x = 1,482,803.21
  5. Step 5: Solve for x
    x = 1,482,803.21/1,726.75
  6. Step 6: Final answer
    x = 858.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.