Home / 5,140.35-7,095.06-3,151.71

Finding the Fourth Proportional to 5,140.35, 7,095.06 and 3,151.71

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Solution

The fourth proportional to 5,140.35, 7,095.06 and 3,151.71 is: 4,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.35 : 7,095.06 = 3,151.71 : x
  2. Step 2: Convert to fraction form
    5,140.35/7,095.06 = 3,151.71/x
  3. Step 3: Cross multiply
    5,140.35x = 7,095.06 × 3,151.71
  4. Step 4: Simplify right side
    5,140.35x = 22,361,571.55
  5. Step 5: Solve for x
    x = 22,361,571.55/5,140.35
  6. Step 6: Final answer
    x = 4,350.20

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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.