Home / 2,111.77-3,167.66-1,407.49

Finding the Fourth Proportional to 2,111.77, 3,167.66 and 1,407.49

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Solution

The fourth proportional to 2,111.77, 3,167.66 and 1,407.49 is: 2,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.77 : 3,167.66 = 1,407.49 : x
  2. Step 2: Convert to fraction form
    2,111.77/3,167.66 = 1,407.49/x
  3. Step 3: Cross multiply
    2,111.77x = 3,167.66 × 1,407.49
  4. Step 4: Simplify right side
    2,111.77x = 4,458,449.77
  5. Step 5: Solve for x
    x = 4,458,449.77/2,111.77
  6. Step 6: Final answer
    x = 2,111.24

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Similar ratio
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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.