Home / 5,790.47-7,990.85-3,137.88

Finding the Fourth Proportional to 5,790.47, 7,990.85 and 3,137.88

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Solution

The fourth proportional to 5,790.47, 7,990.85 and 3,137.88 is: 4,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.47 : 7,990.85 = 3,137.88 : x
  2. Step 2: Convert to fraction form
    5,790.47/7,990.85 = 3,137.88/x
  3. Step 3: Cross multiply
    5,790.47x = 7,990.85 × 3,137.88
  4. Step 4: Simplify right side
    5,790.47x = 25,074,330.34
  5. Step 5: Solve for x
    x = 25,074,330.34/5,790.47
  6. Step 6: Final answer
    x = 4,330.27

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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.