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Finding the Fourth Proportional to 2,677.68, 3,690.36 and 2,553.48

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Solution

The fourth proportional to 2,677.68, 3,690.36 and 2,553.48 is: 3,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.68 : 3,690.36 = 2,553.48 : x
  2. Step 2: Convert to fraction form
    2,677.68/3,690.36 = 2,553.48/x
  3. Step 3: Cross multiply
    2,677.68x = 3,690.36 × 2,553.48
  4. Step 4: Simplify right side
    2,677.68x = 9,423,260.45
  5. Step 5: Solve for x
    x = 9,423,260.45/2,677.68
  6. Step 6: Final answer
    x = 3,519.19

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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.