Home / 2,586.88-3,880.25-1,126.03

Finding the Fourth Proportional to 2,586.88, 3,880.25 and 1,126.03

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Solution

The fourth proportional to 2,586.88, 3,880.25 and 1,126.03 is: 1,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.88 : 3,880.25 = 1,126.03 : x
  2. Step 2: Convert to fraction form
    2,586.88/3,880.25 = 1,126.03/x
  3. Step 3: Cross multiply
    2,586.88x = 3,880.25 × 1,126.03
  4. Step 4: Simplify right side
    2,586.88x = 4,369,277.91
  5. Step 5: Solve for x
    x = 4,369,277.91/2,586.88
  6. Step 6: Final answer
    x = 1,689.01

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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.