Home / 5,708.38-7,877.34-3,318.02

Finding the Fourth Proportional to 5,708.38, 7,877.34 and 3,318.02

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Solution

The fourth proportional to 5,708.38, 7,877.34 and 3,318.02 is: 4,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.38 : 7,877.34 = 3,318.02 : x
  2. Step 2: Convert to fraction form
    5,708.38/7,877.34 = 3,318.02/x
  3. Step 3: Cross multiply
    5,708.38x = 7,877.34 × 3,318.02
  4. Step 4: Simplify right side
    5,708.38x = 26,137,171.67
  5. Step 5: Solve for x
    x = 26,137,171.67/5,708.38
  6. Step 6: Final answer
    x = 4,578.74

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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.