Home / 3,816.42-5,264.70-3,149.40

Finding the Fourth Proportional to 3,816.42, 5,264.70 and 3,149.40

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Solution

The fourth proportional to 3,816.42, 5,264.70 and 3,149.40 is: 4,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.42 : 5,264.70 = 3,149.40 : x
  2. Step 2: Convert to fraction form
    3,816.42/5,264.70 = 3,149.40/x
  3. Step 3: Cross multiply
    3,816.42x = 5,264.70 × 3,149.40
  4. Step 4: Simplify right side
    3,816.42x = 16,580,646.18
  5. Step 5: Solve for x
    x = 16,580,646.18/3,816.42
  6. Step 6: Final answer
    x = 4,344.55

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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.