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Finding the Fourth Proportional to 2,839.60, 4,259.40 and 2,532.40

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Solution

The fourth proportional to 2,839.60, 4,259.40 and 2,532.40 is: 3,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.60 : 4,259.40 = 2,532.40 : x
  2. Step 2: Convert to fraction form
    2,839.60/4,259.40 = 2,532.40/x
  3. Step 3: Cross multiply
    2,839.60x = 4,259.40 × 2,532.40
  4. Step 4: Simplify right side
    2,839.60x = 10,786,504.56
  5. Step 5: Solve for x
    x = 10,786,504.56/2,839.60
  6. Step 6: Final answer
    x = 3,798.60

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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.