Home / 7,711.84-10,642.34-4,175.05

Finding the Fourth Proportional to 7,711.84, 10,642.34 and 4,175.05

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Solution

The fourth proportional to 7,711.84, 10,642.34 and 4,175.05 is: 5,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.84 : 10,642.34 = 4,175.05 : x
  2. Step 2: Convert to fraction form
    7,711.84/10,642.34 = 4,175.05/x
  3. Step 3: Cross multiply
    7,711.84x = 10,642.34 × 4,175.05
  4. Step 4: Simplify right side
    7,711.84x = 44,432,293.66
  5. Step 5: Solve for x
    x = 44,432,293.66/7,711.84
  6. Step 6: Final answer
    x = 5,761.57

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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.