Home / 7,385.47-11,077.17-2,120.92

Finding the Fourth Proportional to 7,385.47, 11,077.17 and 2,120.92

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Solution

The fourth proportional to 7,385.47, 11,077.17 and 2,120.92 is: 3,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.47 : 11,077.17 = 2,120.92 : x
  2. Step 2: Convert to fraction form
    7,385.47/11,077.17 = 2,120.92/x
  3. Step 3: Cross multiply
    7,385.47x = 11,077.17 × 2,120.92
  4. Step 4: Simplify right side
    7,385.47x = 23,493,791.40
  5. Step 5: Solve for x
    x = 23,493,791.40/7,385.47
  6. Step 6: Final answer
    x = 3,181.08

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1.5x scale

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.