Home / 10,649.72-15,973.34-2,857.92

Finding the Fourth Proportional to 10,649.72, 15,973.34 and 2,857.92

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Solution

The fourth proportional to 10,649.72, 15,973.34 and 2,857.92 is: 4,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649.72 : 15,973.34 = 2,857.92 : x
  2. Step 2: Convert to fraction form
    10,649.72/15,973.34 = 2,857.92/x
  3. Step 3: Cross multiply
    10,649.72x = 15,973.34 × 2,857.92
  4. Step 4: Simplify right side
    10,649.72x = 45,650,527.85
  5. Step 5: Solve for x
    x = 45,650,527.85/10,649.72
  6. Step 6: Final answer
    x = 4,286.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.