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Finding the Fourth Proportional to 6,919.22, 9,549.95 and 4,230.90

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Solution

The fourth proportional to 6,919.22, 9,549.95 and 4,230.90 is: 5,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.22 : 9,549.95 = 4,230.90 : x
  2. Step 2: Convert to fraction form
    6,919.22/9,549.95 = 4,230.90/x
  3. Step 3: Cross multiply
    6,919.22x = 9,549.95 × 4,230.90
  4. Step 4: Simplify right side
    6,919.22x = 40,404,883.46
  5. Step 5: Solve for x
    x = 40,404,883.46/6,919.22
  6. Step 6: Final answer
    x = 5,839.51

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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.