Home / 2,258.13-3,115.77-1,313.92

Finding the Fourth Proportional to 2,258.13, 3,115.77 and 1,313.92

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Solution

The fourth proportional to 2,258.13, 3,115.77 and 1,313.92 is: 1,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.13 : 3,115.77 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    2,258.13/3,115.77 = 1,313.92/x
  3. Step 3: Cross multiply
    2,258.13x = 3,115.77 × 1,313.92
  4. Step 4: Simplify right side
    2,258.13x = 4,093,872.52
  5. Step 5: Solve for x
    x = 4,093,872.52/2,258.13
  6. Step 6: Final answer
    x = 1,812.95

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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.