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Finding the Fourth Proportional to 1,564.64, 2,347 and 590.52

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Solution

The fourth proportional to 1,564.64, 2,347 and 590.52 is: 885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.64 : 2,347 = 590.52 : x
  2. Step 2: Convert to fraction form
    1,564.64/2,347 = 590.52/x
  3. Step 3: Cross multiply
    1,564.64x = 2,347 × 590.52
  4. Step 4: Simplify right side
    1,564.64x = 1,385,950.44
  5. Step 5: Solve for x
    x = 1,385,950.44/1,564.64
  6. Step 6: Final answer
    x = 885.80

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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.