Home / 5,708.36-7,877.20-3,318.16

Finding the Fourth Proportional to 5,708.36, 7,877.20 and 3,318.16

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Solution

The fourth proportional to 5,708.36, 7,877.20 and 3,318.16 is: 4,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.36 : 7,877.20 = 3,318.16 : x
  2. Step 2: Convert to fraction form
    5,708.36/7,877.20 = 3,318.16/x
  3. Step 3: Cross multiply
    5,708.36x = 7,877.20 × 3,318.16
  4. Step 4: Simplify right side
    5,708.36x = 26,137,781.96
  5. Step 5: Solve for x
    x = 26,137,781.96/5,708.36
  6. Step 6: Final answer
    x = 4,578.86

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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.