Home / 5,207.53-7,811.22-1,258.75

Finding the Fourth Proportional to 5,207.53, 7,811.22 and 1,258.75

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Solution

The fourth proportional to 5,207.53, 7,811.22 and 1,258.75 is: 1,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.53 : 7,811.22 = 1,258.75 : x
  2. Step 2: Convert to fraction form
    5,207.53/7,811.22 = 1,258.75/x
  3. Step 3: Cross multiply
    5,207.53x = 7,811.22 × 1,258.75
  4. Step 4: Simplify right side
    5,207.53x = 9,832,366.88
  5. Step 5: Solve for x
    x = 9,832,366.88/5,207.53
  6. Step 6: Final answer
    x = 1,888.11

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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.