Home / 5,645.25-7,790.43-3,127.37

Finding the Fourth Proportional to 5,645.25, 7,790.43 and 3,127.37

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Solution

The fourth proportional to 5,645.25, 7,790.43 and 3,127.37 is: 4,315.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.25 : 7,790.43 = 3,127.37 : x
  2. Step 2: Convert to fraction form
    5,645.25/7,790.43 = 3,127.37/x
  3. Step 3: Cross multiply
    5,645.25x = 7,790.43 × 3,127.37
  4. Step 4: Simplify right side
    5,645.25x = 24,363,518.12
  5. Step 5: Solve for x
    x = 24,363,518.12/5,645.25
  6. Step 6: Final answer
    x = 4,315.76

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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.