Home / 5,790.30-7,990.52-3,137.66

Finding the Fourth Proportional to 5,790.30, 7,990.52 and 3,137.66

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Solution

The fourth proportional to 5,790.30, 7,990.52 and 3,137.66 is: 4,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.30 : 7,990.52 = 3,137.66 : x
  2. Step 2: Convert to fraction form
    5,790.30/7,990.52 = 3,137.66/x
  3. Step 3: Cross multiply
    5,790.30x = 7,990.52 × 3,137.66
  4. Step 4: Simplify right side
    5,790.30x = 25,071,534.98
  5. Step 5: Solve for x
    x = 25,071,534.98/5,790.30
  6. Step 6: Final answer
    x = 4,329.92

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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.