Home / 4,152.12-5,729.92-2,289.12

Finding the Fourth Proportional to 4,152.12, 5,729.92 and 2,289.12

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Solution

The fourth proportional to 4,152.12, 5,729.92 and 2,289.12 is: 3,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,152.12 : 5,729.92 = 2,289.12 : x
  2. Step 2: Convert to fraction form
    4,152.12/5,729.92 = 2,289.12/x
  3. Step 3: Cross multiply
    4,152.12x = 5,729.92 × 2,289.12
  4. Step 4: Simplify right side
    4,152.12x = 13,116,474.47
  5. Step 5: Solve for x
    x = 13,116,474.47/4,152.12
  6. Step 6: Final answer
    x = 3,158.98

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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.