Home / 3,133.28-4,699.92-824.72

Finding the Fourth Proportional to 3,133.28, 4,699.92 and 824.72

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Solution

The fourth proportional to 3,133.28, 4,699.92 and 824.72 is: 1,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.28 : 4,699.92 = 824.72 : x
  2. Step 2: Convert to fraction form
    3,133.28/4,699.92 = 824.72/x
  3. Step 3: Cross multiply
    3,133.28x = 4,699.92 × 824.72
  4. Step 4: Simplify right side
    3,133.28x = 3,876,118.02
  5. Step 5: Solve for x
    x = 3,876,118.02/3,133.28
  6. Step 6: Final answer
    x = 1,237.08

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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.