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Finding the Fourth Proportional to 1,564.62, 2,347.74 and 591.36

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Solution

The fourth proportional to 1,564.62, 2,347.74 and 591.36 is: 887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.62 : 2,347.74 = 591.36 : x
  2. Step 2: Convert to fraction form
    1,564.62/2,347.74 = 591.36/x
  3. Step 3: Cross multiply
    1,564.62x = 2,347.74 × 591.36
  4. Step 4: Simplify right side
    1,564.62x = 1,388,359.53
  5. Step 5: Solve for x
    x = 1,388,359.53/1,564.62
  6. Step 6: Final answer
    x = 887.35

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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.