Home / 7,175.72-9,902.45-4,031.91

Finding the Fourth Proportional to 7,175.72, 9,902.45 and 4,031.91

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Solution

The fourth proportional to 7,175.72, 9,902.45 and 4,031.91 is: 5,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.72 : 9,902.45 = 4,031.91 : x
  2. Step 2: Convert to fraction form
    7,175.72/9,902.45 = 4,031.91/x
  3. Step 3: Cross multiply
    7,175.72x = 9,902.45 × 4,031.91
  4. Step 4: Simplify right side
    7,175.72x = 39,925,797.26
  5. Step 5: Solve for x
    x = 39,925,797.26/7,175.72
  6. Step 6: Final answer
    x = 5,564.01

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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.