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Finding the Fourth Proportional to 2,602.76, 3,909.51 and 2,490.48

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Solution

The fourth proportional to 2,602.76, 3,909.51 and 2,490.48 is: 3,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602.76 : 3,909.51 = 2,490.48 : x
  2. Step 2: Convert to fraction form
    2,602.76/3,909.51 = 2,490.48/x
  3. Step 3: Cross multiply
    2,602.76x = 3,909.51 × 2,490.48
  4. Step 4: Simplify right side
    2,602.76x = 9,736,524.46
  5. Step 5: Solve for x
    x = 9,736,524.46/2,602.76
  6. Step 6: Final answer
    x = 3,740.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.