Home / 5,139.74-7,096.19-3,151.39

Finding the Fourth Proportional to 5,139.74, 7,096.19 and 3,151.39

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Solution

The fourth proportional to 5,139.74, 7,096.19 and 3,151.39 is: 4,350.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.74 : 7,096.19 = 3,151.39 : x
  2. Step 2: Convert to fraction form
    5,139.74/7,096.19 = 3,151.39/x
  3. Step 3: Cross multiply
    5,139.74x = 7,096.19 × 3,151.39
  4. Step 4: Simplify right side
    5,139.74x = 22,362,828.71
  5. Step 5: Solve for x
    x = 22,362,828.71/5,139.74
  6. Step 6: Final answer
    x = 4,350.97

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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.