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Finding the Fourth Proportional to 1,248.96, 1,875.08 and 1,002.30

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Solution

The fourth proportional to 1,248.96, 1,875.08 and 1,002.30 is: 1,504.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.96 : 1,875.08 = 1,002.30 : x
  2. Step 2: Convert to fraction form
    1,248.96/1,875.08 = 1,002.30/x
  3. Step 3: Cross multiply
    1,248.96x = 1,875.08 × 1,002.30
  4. Step 4: Simplify right side
    1,248.96x = 1,879,392.68
  5. Step 5: Solve for x
    x = 1,879,392.68/1,248.96
  6. Step 6: Final answer
    x = 1,504.77

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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.