Home / 5,645.06-7,790.20-3,127.11

Finding the Fourth Proportional to 5,645.06, 7,790.20 and 3,127.11

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Solution

The fourth proportional to 5,645.06, 7,790.20 and 3,127.11 is: 4,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.06 : 7,790.20 = 3,127.11 : x
  2. Step 2: Convert to fraction form
    5,645.06/7,790.20 = 3,127.11/x
  3. Step 3: Cross multiply
    5,645.06x = 7,790.20 × 3,127.11
  4. Step 4: Simplify right side
    5,645.06x = 24,360,812.32
  5. Step 5: Solve for x
    x = 24,360,812.32/5,645.06
  6. Step 6: Final answer
    x = 4,315.43

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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.