Home / 2,691.90-4,036.35-1,130.22

Finding the Fourth Proportional to 2,691.90, 4,036.35 and 1,130.22

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Solution

The fourth proportional to 2,691.90, 4,036.35 and 1,130.22 is: 1,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.90 : 4,036.35 = 1,130.22 : x
  2. Step 2: Convert to fraction form
    2,691.90/4,036.35 = 1,130.22/x
  3. Step 3: Cross multiply
    2,691.90x = 4,036.35 × 1,130.22
  4. Step 4: Simplify right side
    2,691.90x = 4,561,963.50
  5. Step 5: Solve for x
    x = 4,561,963.50/2,691.90
  6. Step 6: Final answer
    x = 1,694.70

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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.