Home / 7,139.13-10,707.60-2,458.41

Finding the Fourth Proportional to 7,139.13, 10,707.60 and 2,458.41

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Solution

The fourth proportional to 7,139.13, 10,707.60 and 2,458.41 is: 3,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.13 : 10,707.60 = 2,458.41 : x
  2. Step 2: Convert to fraction form
    7,139.13/10,707.60 = 2,458.41/x
  3. Step 3: Cross multiply
    7,139.13x = 10,707.60 × 2,458.41
  4. Step 4: Simplify right side
    7,139.13x = 26,323,670.92
  5. Step 5: Solve for x
    x = 26,323,670.92/7,139.13
  6. Step 6: Final answer
    x = 3,687.24

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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.