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Finding the Fourth Proportional to 1,094.28, 1,641.30 and 508.92

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Solution

The fourth proportional to 1,094.28, 1,641.30 and 508.92 is: 763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.28 : 1,641.30 = 508.92 : x
  2. Step 2: Convert to fraction form
    1,094.28/1,641.30 = 508.92/x
  3. Step 3: Cross multiply
    1,094.28x = 1,641.30 × 508.92
  4. Step 4: Simplify right side
    1,094.28x = 835,290.40
  5. Step 5: Solve for x
    x = 835,290.40/1,094.28
  6. Step 6: Final answer
    x = 763.32

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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.