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Finding the Fourth Proportional to 1,124.13, 1,675.02 and 1,001.45

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Solution

The fourth proportional to 1,124.13, 1,675.02 and 1,001.45 is: 1,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.13 : 1,675.02 = 1,001.45 : x
  2. Step 2: Convert to fraction form
    1,124.13/1,675.02 = 1,001.45/x
  3. Step 3: Cross multiply
    1,124.13x = 1,675.02 × 1,001.45
  4. Step 4: Simplify right side
    1,124.13x = 1,677,448.78
  5. Step 5: Solve for x
    x = 1,677,448.78/1,124.13
  6. Step 6: Final answer
    x = 1,492.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.