Home / 3,431.66-5,140.62-1,580.24

Finding the Fourth Proportional to 3,431.66, 5,140.62 and 1,580.24

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Solution

The fourth proportional to 3,431.66, 5,140.62 and 1,580.24 is: 2,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.66 : 5,140.62 = 1,580.24 : x
  2. Step 2: Convert to fraction form
    3,431.66/5,140.62 = 1,580.24/x
  3. Step 3: Cross multiply
    3,431.66x = 5,140.62 × 1,580.24
  4. Step 4: Simplify right side
    3,431.66x = 8,123,413.35
  5. Step 5: Solve for x
    x = 8,123,413.35/3,431.66
  6. Step 6: Final answer
    x = 2,367.20

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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.