Home / 5,146.06-7,101.57-2,788.20

Finding the Fourth Proportional to 5,146.06, 7,101.57 and 2,788.20

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Solution

The fourth proportional to 5,146.06, 7,101.57 and 2,788.20 is: 3,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.06 : 7,101.57 = 2,788.20 : x
  2. Step 2: Convert to fraction form
    5,146.06/7,101.57 = 2,788.20/x
  3. Step 3: Cross multiply
    5,146.06x = 7,101.57 × 2,788.20
  4. Step 4: Simplify right side
    5,146.06x = 19,800,597.47
  5. Step 5: Solve for x
    x = 19,800,597.47/5,146.06
  6. Step 6: Final answer
    x = 3,847.72

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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.