Home / 2,586.68-3,881.84-1,126.24

Finding the Fourth Proportional to 2,586.68, 3,881.84 and 1,126.24

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Solution

The fourth proportional to 2,586.68, 3,881.84 and 1,126.24 is: 1,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.68 : 3,881.84 = 1,126.24 : x
  2. Step 2: Convert to fraction form
    2,586.68/3,881.84 = 1,126.24/x
  3. Step 3: Cross multiply
    2,586.68x = 3,881.84 × 1,126.24
  4. Step 4: Simplify right side
    2,586.68x = 4,371,883.48
  5. Step 5: Solve for x
    x = 4,371,883.48/2,586.68
  6. Step 6: Final answer
    x = 1,690.15

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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.