Home / 7,176.23-9,902.10-4,031.81

Finding the Fourth Proportional to 7,176.23, 9,902.10 and 4,031.81

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Solution

The fourth proportional to 7,176.23, 9,902.10 and 4,031.81 is: 5,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.23 : 9,902.10 = 4,031.81 : x
  2. Step 2: Convert to fraction form
    7,176.23/9,902.10 = 4,031.81/x
  3. Step 3: Cross multiply
    7,176.23x = 9,902.10 × 4,031.81
  4. Step 4: Simplify right side
    7,176.23x = 39,923,385.80
  5. Step 5: Solve for x
    x = 39,923,385.80/7,176.23
  6. Step 6: Final answer
    x = 5,563.28

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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.