Home / 5,139.40-7,091.61-3,014.13

Finding the Fourth Proportional to 5,139.40, 7,091.61 and 3,014.13

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Solution

The fourth proportional to 5,139.40, 7,091.61 and 3,014.13 is: 4,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.40 : 7,091.61 = 3,014.13 : x
  2. Step 2: Convert to fraction form
    5,139.40/7,091.61 = 3,014.13/x
  3. Step 3: Cross multiply
    5,139.40x = 7,091.61 × 3,014.13
  4. Step 4: Simplify right side
    5,139.40x = 21,375,026.80
  5. Step 5: Solve for x
    x = 21,375,026.80/5,139.40
  6. Step 6: Final answer
    x = 4,159.05

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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.