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Finding the Fourth Proportional to 3,943, 5,441.88 and 2,545.48

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Solution

The fourth proportional to 3,943, 5,441.88 and 2,545.48 is: 3,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943 : 5,441.88 = 2,545.48 : x
  2. Step 2: Convert to fraction form
    3,943/5,441.88 = 2,545.48/x
  3. Step 3: Cross multiply
    3,943x = 5,441.88 × 2,545.48
  4. Step 4: Simplify right side
    3,943x = 13,852,196.70
  5. Step 5: Solve for x
    x = 13,852,196.70/3,943
  6. Step 6: Final answer
    x = 3,513.11

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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.