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Finding the Fourth Proportional to 6,354.40, 8,769.13 and 3,521.83

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Solution

The fourth proportional to 6,354.40, 8,769.13 and 3,521.83 is: 4,860.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,354.40 : 8,769.13 = 3,521.83 : x
  2. Step 2: Convert to fraction form
    6,354.40/8,769.13 = 3,521.83/x
  3. Step 3: Cross multiply
    6,354.40x = 8,769.13 × 3,521.83
  4. Step 4: Simplify right side
    6,354.40x = 30,883,422.39
  5. Step 5: Solve for x
    x = 30,883,422.39/6,354.40
  6. Step 6: Final answer
    x = 4,860.17

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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.