Home / 1,595.12-2,201.08-886.80

Finding the Fourth Proportional to 1,595.12, 2,201.08 and 886.80

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Solution

The fourth proportional to 1,595.12, 2,201.08 and 886.80 is: 1,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.12 : 2,201.08 = 886.80 : x
  2. Step 2: Convert to fraction form
    1,595.12/2,201.08 = 886.80/x
  3. Step 3: Cross multiply
    1,595.12x = 2,201.08 × 886.80
  4. Step 4: Simplify right side
    1,595.12x = 1,951,917.74
  5. Step 5: Solve for x
    x = 1,951,917.74/1,595.12
  6. Step 6: Final answer
    x = 1,223.68

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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.