Home / 2,576.13-3,861.55-1,259.20

Finding the Fourth Proportional to 2,576.13, 3,861.55 and 1,259.20

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Solution

The fourth proportional to 2,576.13, 3,861.55 and 1,259.20 is: 1,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.13 : 3,861.55 = 1,259.20 : x
  2. Step 2: Convert to fraction form
    2,576.13/3,861.55 = 1,259.20/x
  3. Step 3: Cross multiply
    2,576.13x = 3,861.55 × 1,259.20
  4. Step 4: Simplify right side
    2,576.13x = 4,862,463.76
  5. Step 5: Solve for x
    x = 4,862,463.76/2,576.13
  6. Step 6: Final answer
    x = 1,887.51

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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.