Home / 7,139.07-10,707.19-2,207.52

Finding the Fourth Proportional to 7,139.07, 10,707.19 and 2,207.52

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Solution

The fourth proportional to 7,139.07, 10,707.19 and 2,207.52 is: 3,310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.07 : 10,707.19 = 2,207.52 : x
  2. Step 2: Convert to fraction form
    7,139.07/10,707.19 = 2,207.52/x
  3. Step 3: Cross multiply
    7,139.07x = 10,707.19 × 2,207.52
  4. Step 4: Simplify right side
    7,139.07x = 23,636,330.55
  5. Step 5: Solve for x
    x = 23,636,330.55/7,139.07
  6. Step 6: Final answer
    x = 3,310.84

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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.