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Finding the Fourth Proportional to 2,482.87, 3,724.70 and 839.51

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Solution

The fourth proportional to 2,482.87, 3,724.70 and 839.51 is: 1,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.87 : 3,724.70 = 839.51 : x
  2. Step 2: Convert to fraction form
    2,482.87/3,724.70 = 839.51/x
  3. Step 3: Cross multiply
    2,482.87x = 3,724.70 × 839.51
  4. Step 4: Simplify right side
    2,482.87x = 3,126,922.90
  5. Step 5: Solve for x
    x = 3,126,922.90/2,482.87
  6. Step 6: Final answer
    x = 1,259.40

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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.