Home / 2,091.47-2,886.53-1,195.20

Finding the Fourth Proportional to 2,091.47, 2,886.53 and 1,195.20

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Solution

The fourth proportional to 2,091.47, 2,886.53 and 1,195.20 is: 1,649.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.47 : 2,886.53 = 1,195.20 : x
  2. Step 2: Convert to fraction form
    2,091.47/2,886.53 = 1,195.20/x
  3. Step 3: Cross multiply
    2,091.47x = 2,886.53 × 1,195.20
  4. Step 4: Simplify right side
    2,091.47x = 3,449,974.68
  5. Step 5: Solve for x
    x = 3,449,974.68/2,091.47
  6. Step 6: Final answer
    x = 1,649.55

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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.