Home / 5,139.30-7,092.36-2,901.22

Finding the Fourth Proportional to 5,139.30, 7,092.36 and 2,901.22

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Solution

The fourth proportional to 5,139.30, 7,092.36 and 2,901.22 is: 4,003.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.30 : 7,092.36 = 2,901.22 : x
  2. Step 2: Convert to fraction form
    5,139.30/7,092.36 = 2,901.22/x
  3. Step 3: Cross multiply
    5,139.30x = 7,092.36 × 2,901.22
  4. Step 4: Simplify right side
    5,139.30x = 20,576,478.95
  5. Step 5: Solve for x
    x = 20,576,478.95/5,139.30
  6. Step 6: Final answer
    x = 4,003.75

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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.