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Finding the Fourth Proportional to 6,378.33, 8,801.98 and 3,545.66

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Solution

The fourth proportional to 6,378.33, 8,801.98 and 3,545.66 is: 4,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.33 : 8,801.98 = 3,545.66 : x
  2. Step 2: Convert to fraction form
    6,378.33/8,801.98 = 3,545.66/x
  3. Step 3: Cross multiply
    6,378.33x = 8,801.98 × 3,545.66
  4. Step 4: Simplify right side
    6,378.33x = 31,208,828.41
  5. Step 5: Solve for x
    x = 31,208,828.41/6,378.33
  6. Step 6: Final answer
    x = 4,892.95

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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.