Home / 3,614.42-4,988.05-2,728.69

Finding the Fourth Proportional to 3,614.42, 4,988.05 and 2,728.69

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Solution

The fourth proportional to 3,614.42, 4,988.05 and 2,728.69 is: 3,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.42 : 4,988.05 = 2,728.69 : x
  2. Step 2: Convert to fraction form
    3,614.42/4,988.05 = 2,728.69/x
  3. Step 3: Cross multiply
    3,614.42x = 4,988.05 × 2,728.69
  4. Step 4: Simplify right side
    3,614.42x = 13,610,822.86
  5. Step 5: Solve for x
    x = 13,610,822.86/3,614.42
  6. Step 6: Final answer
    x = 3,765.70

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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.