Home / 4,151.72-5,729.40-2,288.72

Finding the Fourth Proportional to 4,151.72, 5,729.40 and 2,288.72

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Solution

The fourth proportional to 4,151.72, 5,729.40 and 2,288.72 is: 3,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.72 : 5,729.40 = 2,288.72 : x
  2. Step 2: Convert to fraction form
    4,151.72/5,729.40 = 2,288.72/x
  3. Step 3: Cross multiply
    4,151.72x = 5,729.40 × 2,288.72
  4. Step 4: Simplify right side
    4,151.72x = 13,112,992.37
  5. Step 5: Solve for x
    x = 13,112,992.37/4,151.72
  6. Step 6: Final answer
    x = 3,158.45

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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.