Home / 3,126.06-4,689.03-1,276.74

Finding the Fourth Proportional to 3,126.06, 4,689.03 and 1,276.74

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Solution

The fourth proportional to 3,126.06, 4,689.03 and 1,276.74 is: 1,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.06 : 4,689.03 = 1,276.74 : x
  2. Step 2: Convert to fraction form
    3,126.06/4,689.03 = 1,276.74/x
  3. Step 3: Cross multiply
    3,126.06x = 4,689.03 × 1,276.74
  4. Step 4: Simplify right side
    3,126.06x = 5,986,672.16
  5. Step 5: Solve for x
    x = 5,986,672.16/3,126.06
  6. Step 6: Final answer
    x = 1,915.09

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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.