Home / 7,711.95-10,642.49-4,175.16

Finding the Fourth Proportional to 7,711.95, 10,642.49 and 4,175.16

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Solution

The fourth proportional to 7,711.95, 10,642.49 and 4,175.16 is: 5,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.95 : 10,642.49 = 4,175.16 : x
  2. Step 2: Convert to fraction form
    7,711.95/10,642.49 = 4,175.16/x
  3. Step 3: Cross multiply
    7,711.95x = 10,642.49 × 4,175.16
  4. Step 4: Simplify right side
    7,711.95x = 44,434,095.68
  5. Step 5: Solve for x
    x = 44,434,095.68/7,711.95
  6. Step 6: Final answer
    x = 5,761.72

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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.