Home / 5,035.10-6,949.80-3,145.55

Finding the Fourth Proportional to 5,035.10, 6,949.80 and 3,145.55

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Solution

The fourth proportional to 5,035.10, 6,949.80 and 3,145.55 is: 4,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,035.10 : 6,949.80 = 3,145.55 : x
  2. Step 2: Convert to fraction form
    5,035.10/6,949.80 = 3,145.55/x
  3. Step 3: Cross multiply
    5,035.10x = 6,949.80 × 3,145.55
  4. Step 4: Simplify right side
    5,035.10x = 21,860,908.64
  5. Step 5: Solve for x
    x = 21,860,908.64/5,035.10
  6. Step 6: Final answer
    x = 4,341.71

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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.