Home / 6,418.55-8,857.35-3,585.78

Finding the Fourth Proportional to 6,418.55, 8,857.35 and 3,585.78

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Solution

The fourth proportional to 6,418.55, 8,857.35 and 3,585.78 is: 4,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.55 : 8,857.35 = 3,585.78 : x
  2. Step 2: Convert to fraction form
    6,418.55/8,857.35 = 3,585.78/x
  3. Step 3: Cross multiply
    6,418.55x = 8,857.35 × 3,585.78
  4. Step 4: Simplify right side
    6,418.55x = 31,760,508.48
  5. Step 5: Solve for x
    x = 31,760,508.48/6,418.55
  6. Step 6: Final answer
    x = 4,948.24

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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.