Home / 7,711.93-10,642.52-4,175.20

Finding the Fourth Proportional to 7,711.93, 10,642.52 and 4,175.20

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Solution

The fourth proportional to 7,711.93, 10,642.52 and 4,175.20 is: 5,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.93 : 10,642.52 = 4,175.20 : x
  2. Step 2: Convert to fraction form
    7,711.93/10,642.52 = 4,175.20/x
  3. Step 3: Cross multiply
    7,711.93x = 10,642.52 × 4,175.20
  4. Step 4: Simplify right side
    7,711.93x = 44,434,575.42
  5. Step 5: Solve for x
    x = 44,434,575.42/7,711.93
  6. Step 6: Final answer
    x = 5,761.80

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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.