Home / 5,790.19-7,990.46-3,137.60

Finding the Fourth Proportional to 5,790.19, 7,990.46 and 3,137.60

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Solution

The fourth proportional to 5,790.19, 7,990.46 and 3,137.60 is: 4,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.19 : 7,990.46 = 3,137.60 : x
  2. Step 2: Convert to fraction form
    5,790.19/7,990.46 = 3,137.60/x
  3. Step 3: Cross multiply
    5,790.19x = 7,990.46 × 3,137.60
  4. Step 4: Simplify right side
    5,790.19x = 25,070,901.00
  5. Step 5: Solve for x
    x = 25,070,901.00/5,790.19
  6. Step 6: Final answer
    x = 4,329.89

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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.