Home / 5,645.83-7,790.62-3,127.31

Finding the Fourth Proportional to 5,645.83, 7,790.62 and 3,127.31

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Solution

The fourth proportional to 5,645.83, 7,790.62 and 3,127.31 is: 4,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.83 : 7,790.62 = 3,127.31 : x
  2. Step 2: Convert to fraction form
    5,645.83/7,790.62 = 3,127.31/x
  3. Step 3: Cross multiply
    5,645.83x = 7,790.62 × 3,127.31
  4. Step 4: Simplify right side
    5,645.83x = 24,363,691.58
  5. Step 5: Solve for x
    x = 24,363,691.58/5,645.83
  6. Step 6: Final answer
    x = 4,315.34

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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.