Home / 5,164.60-7,766.10-4,319.80

Finding the Fourth Proportional to 5,164.60, 7,766.10 and 4,319.80

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Solution

The fourth proportional to 5,164.60, 7,766.10 and 4,319.80 is: 6,495.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.60 : 7,766.10 = 4,319.80 : x
  2. Step 2: Convert to fraction form
    5,164.60/7,766.10 = 4,319.80/x
  3. Step 3: Cross multiply
    5,164.60x = 7,766.10 × 4,319.80
  4. Step 4: Simplify right side
    5,164.60x = 33,547,998.78
  5. Step 5: Solve for x
    x = 33,547,998.78/5,164.60
  6. Step 6: Final answer
    x = 6,495.76

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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.