Home / 2,253.75-3,109.87-1,258.89

Finding the Fourth Proportional to 2,253.75, 3,109.87 and 1,258.89

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Solution

The fourth proportional to 2,253.75, 3,109.87 and 1,258.89 is: 1,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.75 : 3,109.87 = 1,258.89 : x
  2. Step 2: Convert to fraction form
    2,253.75/3,109.87 = 1,258.89/x
  3. Step 3: Cross multiply
    2,253.75x = 3,109.87 × 1,258.89
  4. Step 4: Simplify right side
    2,253.75x = 3,914,988.11
  5. Step 5: Solve for x
    x = 3,914,988.11/2,253.75
  6. Step 6: Final answer
    x = 1,737.10

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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.