Home / 2,127,021.12-3,191,134.56-865,753.92

Finding the Fourth Proportional to 2,127,021.12, 3,191,134.56 and 865,753.92

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Solution

The fourth proportional to 2,127,021.12, 3,191,134.56 and 865,753.92 is: 1,298,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,021.12 : 3,191,134.56 = 865,753.92 : x
  2. Step 2: Convert to fraction form
    2,127,021.12/3,191,134.56 = 865,753.92/x
  3. Step 3: Cross multiply
    2,127,021.12x = 3,191,134.56 × 865,753.92
  4. Step 4: Simplify right side
    2,127,021.12x = 2,762,737,254,567.48
  5. Step 5: Solve for x
    x = 2,762,737,254,567.48/2,127,021.12
  6. Step 6: Final answer
    x = 1,298,876.27

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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.