Home / 5,645.66-7,790.91-3,127.71

Finding the Fourth Proportional to 5,645.66, 7,790.91 and 3,127.71

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Solution

The fourth proportional to 5,645.66, 7,790.91 and 3,127.71 is: 4,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.66 : 7,790.91 = 3,127.71 : x
  2. Step 2: Convert to fraction form
    5,645.66/7,790.91 = 3,127.71/x
  3. Step 3: Cross multiply
    5,645.66x = 7,790.91 × 3,127.71
  4. Step 4: Simplify right side
    5,645.66x = 24,367,707.12
  5. Step 5: Solve for x
    x = 24,367,707.12/5,645.66
  6. Step 6: Final answer
    x = 4,316.18

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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.