Home / 2,126.40-2,934.09-1,182.18

Finding the Fourth Proportional to 2,126.40, 2,934.09 and 1,182.18

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Solution

The fourth proportional to 2,126.40, 2,934.09 and 1,182.18 is: 1,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.40 : 2,934.09 = 1,182.18 : x
  2. Step 2: Convert to fraction form
    2,126.40/2,934.09 = 1,182.18/x
  3. Step 3: Cross multiply
    2,126.40x = 2,934.09 × 1,182.18
  4. Step 4: Simplify right side
    2,126.40x = 3,468,622.52
  5. Step 5: Solve for x
    x = 3,468,622.52/2,126.40
  6. Step 6: Final answer
    x = 1,631.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.