Home / 1,634.19-2,255.18-888.15

Finding the Fourth Proportional to 1,634.19, 2,255.18 and 888.15

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Solution

The fourth proportional to 1,634.19, 2,255.18 and 888.15 is: 1,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.19 : 2,255.18 = 888.15 : x
  2. Step 2: Convert to fraction form
    1,634.19/2,255.18 = 888.15/x
  3. Step 3: Cross multiply
    1,634.19x = 2,255.18 × 888.15
  4. Step 4: Simplify right side
    1,634.19x = 2,002,940.34
  5. Step 5: Solve for x
    x = 2,002,940.34/1,634.19
  6. Step 6: Final answer
    x = 1,225.65

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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.