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Finding the Fourth Proportional to 2,478.97, 3,699.98 and 2,372.05

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Solution

The fourth proportional to 2,478.97, 3,699.98 and 2,372.05 is: 3,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.97 : 3,699.98 = 2,372.05 : x
  2. Step 2: Convert to fraction form
    2,478.97/3,699.98 = 2,372.05/x
  3. Step 3: Cross multiply
    2,478.97x = 3,699.98 × 2,372.05
  4. Step 4: Simplify right side
    2,478.97x = 8,776,537.56
  5. Step 5: Solve for x
    x = 8,776,537.56/2,478.97
  6. Step 6: Final answer
    x = 3,540.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.