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Finding the Fourth Proportional to 2,829.53, 4,244.20 and 749.55

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Solution

The fourth proportional to 2,829.53, 4,244.20 and 749.55 is: 1,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.53 : 4,244.20 = 749.55 : x
  2. Step 2: Convert to fraction form
    2,829.53/4,244.20 = 749.55/x
  3. Step 3: Cross multiply
    2,829.53x = 4,244.20 × 749.55
  4. Step 4: Simplify right side
    2,829.53x = 3,181,254.15
  5. Step 5: Solve for x
    x = 3,181,254.15/2,829.53
  6. Step 6: Final answer
    x = 1,124.30

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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.