Home / 5,258.65-7,257.45-3,930.05

Finding the Fourth Proportional to 5,258.65, 7,257.45 and 3,930.05

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Solution

The fourth proportional to 5,258.65, 7,257.45 and 3,930.05 is: 5,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.65 : 7,257.45 = 3,930.05 : x
  2. Step 2: Convert to fraction form
    5,258.65/7,257.45 = 3,930.05/x
  3. Step 3: Cross multiply
    5,258.65x = 7,257.45 × 3,930.05
  4. Step 4: Simplify right side
    5,258.65x = 28,522,141.37
  5. Step 5: Solve for x
    x = 28,522,141.37/5,258.65
  6. Step 6: Final answer
    x = 5,423.85

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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.