Home / 4,047.40-5,585.52-2,278.90

Finding the Fourth Proportional to 4,047.40, 5,585.52 and 2,278.90

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Solution

The fourth proportional to 4,047.40, 5,585.52 and 2,278.90 is: 3,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.40 : 5,585.52 = 2,278.90 : x
  2. Step 2: Convert to fraction form
    4,047.40/5,585.52 = 2,278.90/x
  3. Step 3: Cross multiply
    4,047.40x = 5,585.52 × 2,278.90
  4. Step 4: Simplify right side
    4,047.40x = 12,728,841.53
  5. Step 5: Solve for x
    x = 12,728,841.53/4,047.40
  6. Step 6: Final answer
    x = 3,144.94

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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.