Home / 4,047.72-5,586.09-2,279.40

Finding the Fourth Proportional to 4,047.72, 5,586.09 and 2,279.40

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Solution

The fourth proportional to 4,047.72, 5,586.09 and 2,279.40 is: 3,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.72 : 5,586.09 = 2,279.40 : x
  2. Step 2: Convert to fraction form
    4,047.72/5,586.09 = 2,279.40/x
  3. Step 3: Cross multiply
    4,047.72x = 5,586.09 × 2,279.40
  4. Step 4: Simplify right side
    4,047.72x = 12,732,933.55
  5. Step 5: Solve for x
    x = 12,732,933.55/4,047.72
  6. Step 6: Final answer
    x = 3,145.71

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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.