Home / 5,157.08-7,116.28-2,919.12

Finding the Fourth Proportional to 5,157.08, 7,116.28 and 2,919.12

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Solution

The fourth proportional to 5,157.08, 7,116.28 and 2,919.12 is: 4,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.08 : 7,116.28 = 2,919.12 : x
  2. Step 2: Convert to fraction form
    5,157.08/7,116.28 = 2,919.12/x
  3. Step 3: Cross multiply
    5,157.08x = 7,116.28 × 2,919.12
  4. Step 4: Simplify right side
    5,157.08x = 20,773,275.27
  5. Step 5: Solve for x
    x = 20,773,275.27/5,157.08
  6. Step 6: Final answer
    x = 4,028.11

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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.