Home / 2,253.51-3,109.84-1,258.79

Finding the Fourth Proportional to 2,253.51, 3,109.84 and 1,258.79

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Solution

The fourth proportional to 2,253.51, 3,109.84 and 1,258.79 is: 1,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.51 : 3,109.84 = 1,258.79 : x
  2. Step 2: Convert to fraction form
    2,253.51/3,109.84 = 1,258.79/x
  3. Step 3: Cross multiply
    2,253.51x = 3,109.84 × 1,258.79
  4. Step 4: Simplify right side
    2,253.51x = 3,914,640.12
  5. Step 5: Solve for x
    x = 3,914,640.12/2,253.51
  6. Step 6: Final answer
    x = 1,737.13

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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.