Home / 5,216.78-7,199.06-2,858.87

Finding the Fourth Proportional to 5,216.78, 7,199.06 and 2,858.87

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Solution

The fourth proportional to 5,216.78, 7,199.06 and 2,858.87 is: 3,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.78 : 7,199.06 = 2,858.87 : x
  2. Step 2: Convert to fraction form
    5,216.78/7,199.06 = 2,858.87/x
  3. Step 3: Cross multiply
    5,216.78x = 7,199.06 × 2,858.87
  4. Step 4: Simplify right side
    5,216.78x = 20,581,126.37
  5. Step 5: Solve for x
    x = 20,581,126.37/5,216.78
  6. Step 6: Final answer
    x = 3,945.18

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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.