Home / 5,149.87-7,106.29-3,160.51

Finding the Fourth Proportional to 5,149.87, 7,106.29 and 3,160.51

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Solution

The fourth proportional to 5,149.87, 7,106.29 and 3,160.51 is: 4,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.87 : 7,106.29 = 3,160.51 : x
  2. Step 2: Convert to fraction form
    5,149.87/7,106.29 = 3,160.51/x
  3. Step 3: Cross multiply
    5,149.87x = 7,106.29 × 3,160.51
  4. Step 4: Simplify right side
    5,149.87x = 22,459,500.61
  5. Step 5: Solve for x
    x = 22,459,500.61/5,149.87
  6. Step 6: Final answer
    x = 4,361.18

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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.