Home / 6,642.87-9,170.91-4,407.75

Finding the Fourth Proportional to 6,642.87, 9,170.91 and 4,407.75

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Solution

The fourth proportional to 6,642.87, 9,170.91 and 4,407.75 is: 6,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.87 : 9,170.91 = 4,407.75 : x
  2. Step 2: Convert to fraction form
    6,642.87/9,170.91 = 4,407.75/x
  3. Step 3: Cross multiply
    6,642.87x = 9,170.91 × 4,407.75
  4. Step 4: Simplify right side
    6,642.87x = 40,423,078.55
  5. Step 5: Solve for x
    x = 40,423,078.55/6,642.87
  6. Step 6: Final answer
    x = 6,085.18

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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.