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Finding the Fourth Proportional to 3,608.12, 4,981.56 and 2,547.56

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Solution

The fourth proportional to 3,608.12, 4,981.56 and 2,547.56 is: 3,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.12 : 4,981.56 = 2,547.56 : x
  2. Step 2: Convert to fraction form
    3,608.12/4,981.56 = 2,547.56/x
  3. Step 3: Cross multiply
    3,608.12x = 4,981.56 × 2,547.56
  4. Step 4: Simplify right side
    3,608.12x = 12,690,822.99
  5. Step 5: Solve for x
    x = 12,690,822.99/3,608.12
  6. Step 6: Final answer
    x = 3,517.30

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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.