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Finding the Fourth Proportional to 3,242.42, 4,865.55 and 1,393.49

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Solution

The fourth proportional to 3,242.42, 4,865.55 and 1,393.49 is: 2,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.42 : 4,865.55 = 1,393.49 : x
  2. Step 2: Convert to fraction form
    3,242.42/4,865.55 = 1,393.49/x
  3. Step 3: Cross multiply
    3,242.42x = 4,865.55 × 1,393.49
  4. Step 4: Simplify right side
    3,242.42x = 6,780,095.27
  5. Step 5: Solve for x
    x = 6,780,095.27/3,242.42
  6. Step 6: Final answer
    x = 2,091.06

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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.