Home / 5,790.15-7,990.35-3,137.49

Finding the Fourth Proportional to 5,790.15, 7,990.35 and 3,137.49

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Solution

The fourth proportional to 5,790.15, 7,990.35 and 3,137.49 is: 4,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.15 : 7,990.35 = 3,137.49 : x
  2. Step 2: Convert to fraction form
    5,790.15/7,990.35 = 3,137.49/x
  3. Step 3: Cross multiply
    5,790.15x = 7,990.35 × 3,137.49
  4. Step 4: Simplify right side
    5,790.15x = 25,069,643.22
  5. Step 5: Solve for x
    x = 25,069,643.22/5,790.15
  6. Step 6: Final answer
    x = 4,329.71

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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.