Home / 7,217.90-9,960.51-4,031.11

Finding the Fourth Proportional to 7,217.90, 9,960.51 and 4,031.11

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Solution

The fourth proportional to 7,217.90, 9,960.51 and 4,031.11 is: 5,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.90 : 9,960.51 = 4,031.11 : x
  2. Step 2: Convert to fraction form
    7,217.90/9,960.51 = 4,031.11/x
  3. Step 3: Cross multiply
    7,217.90x = 9,960.51 × 4,031.11
  4. Step 4: Simplify right side
    7,217.90x = 40,151,916.36
  5. Step 5: Solve for x
    x = 40,151,916.36/7,217.90
  6. Step 6: Final answer
    x = 5,562.82

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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.