Home / 2,555.40-3,832.20-889.08

Finding the Fourth Proportional to 2,555.40, 3,832.20 and 889.08

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Solution

The fourth proportional to 2,555.40, 3,832.20 and 889.08 is: 1,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.40 : 3,832.20 = 889.08 : x
  2. Step 2: Convert to fraction form
    2,555.40/3,832.20 = 889.08/x
  3. Step 3: Cross multiply
    2,555.40x = 3,832.20 × 889.08
  4. Step 4: Simplify right side
    2,555.40x = 3,407,132.38
  5. Step 5: Solve for x
    x = 3,407,132.38/2,555.40
  6. Step 6: Final answer
    x = 1,333.31

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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.