Home / 4,047.32-5,585.40-2,278.89

Finding the Fourth Proportional to 4,047.32, 5,585.40 and 2,278.89

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Solution

The fourth proportional to 4,047.32, 5,585.40 and 2,278.89 is: 3,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.32 : 5,585.40 = 2,278.89 : x
  2. Step 2: Convert to fraction form
    4,047.32/5,585.40 = 2,278.89/x
  3. Step 3: Cross multiply
    4,047.32x = 5,585.40 × 2,278.89
  4. Step 4: Simplify right side
    4,047.32x = 12,728,512.21
  5. Step 5: Solve for x
    x = 12,728,512.21/4,047.32
  6. Step 6: Final answer
    x = 3,144.93

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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.