Home / 3,940.18-5,445.29-3,230.93

Finding the Fourth Proportional to 3,940.18, 5,445.29 and 3,230.93

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Solution

The fourth proportional to 3,940.18, 5,445.29 and 3,230.93 is: 4,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.18 : 5,445.29 = 3,230.93 : x
  2. Step 2: Convert to fraction form
    3,940.18/5,445.29 = 3,230.93/x
  3. Step 3: Cross multiply
    3,940.18x = 5,445.29 × 3,230.93
  4. Step 4: Simplify right side
    3,940.18x = 17,593,350.82
  5. Step 5: Solve for x
    x = 17,593,350.82/3,940.18
  6. Step 6: Final answer
    x = 4,465.11

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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.