Home / 2,088.35-3,131.91-627.11

Finding the Fourth Proportional to 2,088.35, 3,131.91 and 627.11

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Solution

The fourth proportional to 2,088.35, 3,131.91 and 627.11 is: 940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.35 : 3,131.91 = 627.11 : x
  2. Step 2: Convert to fraction form
    2,088.35/3,131.91 = 627.11/x
  3. Step 3: Cross multiply
    2,088.35x = 3,131.91 × 627.11
  4. Step 4: Simplify right side
    2,088.35x = 1,964,036.42
  5. Step 5: Solve for x
    x = 1,964,036.42/2,088.35
  6. Step 6: Final answer
    x = 940.48

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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.