Home / 2,680.24-4,021.56-1,586.76

Finding the Fourth Proportional to 2,680.24, 4,021.56 and 1,586.76

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Solution

The fourth proportional to 2,680.24, 4,021.56 and 1,586.76 is: 2,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.24 : 4,021.56 = 1,586.76 : x
  2. Step 2: Convert to fraction form
    2,680.24/4,021.56 = 1,586.76/x
  3. Step 3: Cross multiply
    2,680.24x = 4,021.56 × 1,586.76
  4. Step 4: Simplify right side
    2,680.24x = 6,381,250.55
  5. Step 5: Solve for x
    x = 6,381,250.55/2,680.24
  6. Step 6: Final answer
    x = 2,380.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.