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Finding the Fourth Proportional to 1,592.92, 2,388.96 and 619.72

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Solution

The fourth proportional to 1,592.92, 2,388.96 and 619.72 is: 929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.92 : 2,388.96 = 619.72 : x
  2. Step 2: Convert to fraction form
    1,592.92/2,388.96 = 619.72/x
  3. Step 3: Cross multiply
    1,592.92x = 2,388.96 × 619.72
  4. Step 4: Simplify right side
    1,592.92x = 1,480,486.29
  5. Step 5: Solve for x
    x = 1,480,486.29/1,592.92
  6. Step 6: Final answer
    x = 929.42

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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.