Home / 1,867.38-2,581.65-1,400.82

Finding the Fourth Proportional to 1,867.38, 2,581.65 and 1,400.82

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Solution

The fourth proportional to 1,867.38, 2,581.65 and 1,400.82 is: 1,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.38 : 2,581.65 = 1,400.82 : x
  2. Step 2: Convert to fraction form
    1,867.38/2,581.65 = 1,400.82/x
  3. Step 3: Cross multiply
    1,867.38x = 2,581.65 × 1,400.82
  4. Step 4: Simplify right side
    1,867.38x = 3,616,426.95
  5. Step 5: Solve for x
    x = 3,616,426.95/1,867.38
  6. Step 6: Final answer
    x = 1,936.63

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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.