Home / 7,139.62-10,701.74-2,976.46

Finding the Fourth Proportional to 7,139.62, 10,701.74 and 2,976.46

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Solution

The fourth proportional to 7,139.62, 10,701.74 and 2,976.46 is: 4,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.62 : 10,701.74 = 2,976.46 : x
  2. Step 2: Convert to fraction form
    7,139.62/10,701.74 = 2,976.46/x
  3. Step 3: Cross multiply
    7,139.62x = 10,701.74 × 2,976.46
  4. Step 4: Simplify right side
    7,139.62x = 31,853,301.04
  5. Step 5: Solve for x
    x = 31,853,301.04/7,139.62
  6. Step 6: Final answer
    x = 4,461.48

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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.