Home / 3,110.89-4,287.12-2,225.15

Finding the Fourth Proportional to 3,110.89, 4,287.12 and 2,225.15

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Solution

The fourth proportional to 3,110.89, 4,287.12 and 2,225.15 is: 3,066.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.89 : 4,287.12 = 2,225.15 : x
  2. Step 2: Convert to fraction form
    3,110.89/4,287.12 = 2,225.15/x
  3. Step 3: Cross multiply
    3,110.89x = 4,287.12 × 2,225.15
  4. Step 4: Simplify right side
    3,110.89x = 9,539,490.22
  5. Step 5: Solve for x
    x = 9,539,490.22/3,110.89
  6. Step 6: Final answer
    x = 3,066.49

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Double scale
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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.