Home / 3,990.24-5,980.08-3,062.25

Finding the Fourth Proportional to 3,990.24, 5,980.08 and 3,062.25

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Solution

The fourth proportional to 3,990.24, 5,980.08 and 3,062.25 is: 4,589.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.24 : 5,980.08 = 3,062.25 : x
  2. Step 2: Convert to fraction form
    3,990.24/5,980.08 = 3,062.25/x
  3. Step 3: Cross multiply
    3,990.24x = 5,980.08 × 3,062.25
  4. Step 4: Simplify right side
    3,990.24x = 18,312,499.98
  5. Step 5: Solve for x
    x = 18,312,499.98/3,990.24
  6. Step 6: Final answer
    x = 4,589.32

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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.