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Finding the Fourth Proportional to 5,363.62, 7,401.80 and 3,005.78

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Solution

The fourth proportional to 5,363.62, 7,401.80 and 3,005.78 is: 4,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363.62 : 7,401.80 = 3,005.78 : x
  2. Step 2: Convert to fraction form
    5,363.62/7,401.80 = 3,005.78/x
  3. Step 3: Cross multiply
    5,363.62x = 7,401.80 × 3,005.78
  4. Step 4: Simplify right side
    5,363.62x = 22,248,182.40
  5. Step 5: Solve for x
    x = 22,248,182.40/5,363.62
  6. Step 6: Final answer
    x = 4,147.98

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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.