Home / 5,139.13-7,091.85-2,901.04

Finding the Fourth Proportional to 5,139.13, 7,091.85 and 2,901.04

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Solution

The fourth proportional to 5,139.13, 7,091.85 and 2,901.04 is: 4,003.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.13 : 7,091.85 = 2,901.04 : x
  2. Step 2: Convert to fraction form
    5,139.13/7,091.85 = 2,901.04/x
  3. Step 3: Cross multiply
    5,139.13x = 7,091.85 × 2,901.04
  4. Step 4: Simplify right side
    5,139.13x = 20,573,740.52
  5. Step 5: Solve for x
    x = 20,573,740.52/5,139.13
  6. Step 6: Final answer
    x = 4,003.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.