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Finding the Fourth Proportional to 5,710.60, 7,879.62 and 3,226.60

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Solution

The fourth proportional to 5,710.60, 7,879.62 and 3,226.60 is: 4,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.60 : 7,879.62 = 3,226.60 : x
  2. Step 2: Convert to fraction form
    5,710.60/7,879.62 = 3,226.60/x
  3. Step 3: Cross multiply
    5,710.60x = 7,879.62 × 3,226.60
  4. Step 4: Simplify right side
    5,710.60x = 25,424,381.89
  5. Step 5: Solve for x
    x = 25,424,381.89/5,710.60
  6. Step 6: Final answer
    x = 4,452.14

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1.5x scale

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.