Home / 5,139.36-7,086.24-4,433.76

Finding the Fourth Proportional to 5,139.36, 7,086.24 and 4,433.76

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Solution

The fourth proportional to 5,139.36, 7,086.24 and 4,433.76 is: 6,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.36 : 7,086.24 = 4,433.76 : x
  2. Step 2: Convert to fraction form
    5,139.36/7,086.24 = 4,433.76/x
  3. Step 3: Cross multiply
    5,139.36x = 7,086.24 × 4,433.76
  4. Step 4: Simplify right side
    5,139.36x = 31,418,687.46
  5. Step 5: Solve for x
    x = 31,418,687.46/5,139.36
  6. Step 6: Final answer
    x = 6,113.35

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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.