Home / 6,418.72-8,857.55-3,586.08

Finding the Fourth Proportional to 6,418.72, 8,857.55 and 3,586.08

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Solution

The fourth proportional to 6,418.72, 8,857.55 and 3,586.08 is: 4,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.72 : 8,857.55 = 3,586.08 : x
  2. Step 2: Convert to fraction form
    6,418.72/8,857.55 = 3,586.08/x
  3. Step 3: Cross multiply
    6,418.72x = 8,857.55 × 3,586.08
  4. Step 4: Simplify right side
    6,418.72x = 31,763,882.90
  5. Step 5: Solve for x
    x = 31,763,882.90/6,418.72
  6. Step 6: Final answer
    x = 4,948.63

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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.