Home / 1,402.05-2,098.92-1,038.47

Finding the Fourth Proportional to 1,402.05, 2,098.92 and 1,038.47

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Solution

The fourth proportional to 1,402.05, 2,098.92 and 1,038.47 is: 1,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.05 : 2,098.92 = 1,038.47 : x
  2. Step 2: Convert to fraction form
    1,402.05/2,098.92 = 1,038.47/x
  3. Step 3: Cross multiply
    1,402.05x = 2,098.92 × 1,038.47
  4. Step 4: Simplify right side
    1,402.05x = 2,179,654.96
  5. Step 5: Solve for x
    x = 2,179,654.96/1,402.05
  6. Step 6: Final answer
    x = 1,554.62

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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.