Home / 5,156.16-7,115.95-2,919.04

Finding the Fourth Proportional to 5,156.16, 7,115.95 and 2,919.04

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Solution

The fourth proportional to 5,156.16, 7,115.95 and 2,919.04 is: 4,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.16 : 7,115.95 = 2,919.04 : x
  2. Step 2: Convert to fraction form
    5,156.16/7,115.95 = 2,919.04/x
  3. Step 3: Cross multiply
    5,156.16x = 7,115.95 × 2,919.04
  4. Step 4: Simplify right side
    5,156.16x = 20,771,728.55
  5. Step 5: Solve for x
    x = 20,771,728.55/5,156.16
  6. Step 6: Final answer
    x = 4,028.53

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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.