Home / 5,478.59-8,211.72-2,699.38

Finding the Fourth Proportional to 5,478.59, 8,211.72 and 2,699.38

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Solution

The fourth proportional to 5,478.59, 8,211.72 and 2,699.38 is: 4,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.59 : 8,211.72 = 2,699.38 : x
  2. Step 2: Convert to fraction form
    5,478.59/8,211.72 = 2,699.38/x
  3. Step 3: Cross multiply
    5,478.59x = 8,211.72 × 2,699.38
  4. Step 4: Simplify right side
    5,478.59x = 22,166,532.20
  5. Step 5: Solve for x
    x = 22,166,532.20/5,478.59
  6. Step 6: Final answer
    x = 4,046.03

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1.5x scale

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.