Home / 2,558.32-3,836-1,258.16

Finding the Fourth Proportional to 2,558.32, 3,836 and 1,258.16

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Solution

The fourth proportional to 2,558.32, 3,836 and 1,258.16 is: 1,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.32 : 3,836 = 1,258.16 : x
  2. Step 2: Convert to fraction form
    2,558.32/3,836 = 1,258.16/x
  3. Step 3: Cross multiply
    2,558.32x = 3,836 × 1,258.16
  4. Step 4: Simplify right side
    2,558.32x = 4,826,301.76
  5. Step 5: Solve for x
    x = 4,826,301.76/2,558.32
  6. Step 6: Final answer
    x = 1,886.51

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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.