Home / 5,170.15-7,134.74-2,812.29

Finding the Fourth Proportional to 5,170.15, 7,134.74 and 2,812.29

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Solution

The fourth proportional to 5,170.15, 7,134.74 and 2,812.29 is: 3,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.15 : 7,134.74 = 2,812.29 : x
  2. Step 2: Convert to fraction form
    5,170.15/7,134.74 = 2,812.29/x
  3. Step 3: Cross multiply
    5,170.15x = 7,134.74 × 2,812.29
  4. Step 4: Simplify right side
    5,170.15x = 20,064,957.95
  5. Step 5: Solve for x
    x = 20,064,957.95/5,170.15
  6. Step 6: Final answer
    x = 3,880.93

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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.