Home / 5,176.71-7,758.59-2,580.39

Finding the Fourth Proportional to 5,176.71, 7,758.59 and 2,580.39

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Solution

The fourth proportional to 5,176.71, 7,758.59 and 2,580.39 is: 3,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.71 : 7,758.59 = 2,580.39 : x
  2. Step 2: Convert to fraction form
    5,176.71/7,758.59 = 2,580.39/x
  3. Step 3: Cross multiply
    5,176.71x = 7,758.59 × 2,580.39
  4. Step 4: Simplify right side
    5,176.71x = 20,020,175.15
  5. Step 5: Solve for x
    x = 20,020,175.15/5,176.71
  6. Step 6: Final answer
    x = 3,867.35

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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.