Home / 3,937.50-5,433.75-2,282.46

Finding the Fourth Proportional to 3,937.50, 5,433.75 and 2,282.46

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Solution

The fourth proportional to 3,937.50, 5,433.75 and 2,282.46 is: 3,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.50 : 5,433.75 = 2,282.46 : x
  2. Step 2: Convert to fraction form
    3,937.50/5,433.75 = 2,282.46/x
  3. Step 3: Cross multiply
    3,937.50x = 5,433.75 × 2,282.46
  4. Step 4: Simplify right side
    3,937.50x = 12,402,317.03
  5. Step 5: Solve for x
    x = 12,402,317.03/3,937.50
  6. Step 6: Final answer
    x = 3,149.79

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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.