Home / 4,062.40-6,100.80-3,140.20

Finding the Fourth Proportional to 4,062.40, 6,100.80 and 3,140.20

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Solution

The fourth proportional to 4,062.40, 6,100.80 and 3,140.20 is: 4,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,062.40 : 6,100.80 = 3,140.20 : x
  2. Step 2: Convert to fraction form
    4,062.40/6,100.80 = 3,140.20/x
  3. Step 3: Cross multiply
    4,062.40x = 6,100.80 × 3,140.20
  4. Step 4: Simplify right side
    4,062.40x = 19,157,732.16
  5. Step 5: Solve for x
    x = 19,157,732.16/4,062.40
  6. Step 6: Final answer
    x = 4,715.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.