Home / 5,157.28-7,117.08-2,919.24

Finding the Fourth Proportional to 5,157.28, 7,117.08 and 2,919.24

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Solution

The fourth proportional to 5,157.28, 7,117.08 and 2,919.24 is: 4,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.28 : 7,117.08 = 2,919.24 : x
  2. Step 2: Convert to fraction form
    5,157.28/7,117.08 = 2,919.24/x
  3. Step 3: Cross multiply
    5,157.28x = 7,117.08 × 2,919.24
  4. Step 4: Simplify right side
    5,157.28x = 20,776,464.62
  5. Step 5: Solve for x
    x = 20,776,464.62/5,157.28
  6. Step 6: Final answer
    x = 4,028.57

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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.