Home / 7,741.28-10,672.38-5,318.57

Finding the Fourth Proportional to 7,741.28, 10,672.38 and 5,318.57

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Solution

The fourth proportional to 7,741.28, 10,672.38 and 5,318.57 is: 7,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.28 : 10,672.38 = 5,318.57 : x
  2. Step 2: Convert to fraction form
    7,741.28/10,672.38 = 5,318.57/x
  3. Step 3: Cross multiply
    7,741.28x = 10,672.38 × 5,318.57
  4. Step 4: Simplify right side
    7,741.28x = 56,761,746.73
  5. Step 5: Solve for x
    x = 56,761,746.73/7,741.28
  6. Step 6: Final answer
    x = 7,332.35

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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.