Home / 3,009.20-4,513.82-929.18

Finding the Fourth Proportional to 3,009.20, 4,513.82 and 929.18

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Solution

The fourth proportional to 3,009.20, 4,513.82 and 929.18 is: 1,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.20 : 4,513.82 = 929.18 : x
  2. Step 2: Convert to fraction form
    3,009.20/4,513.82 = 929.18/x
  3. Step 3: Cross multiply
    3,009.20x = 4,513.82 × 929.18
  4. Step 4: Simplify right side
    3,009.20x = 4,194,151.27
  5. Step 5: Solve for x
    x = 4,194,151.27/3,009.20
  6. Step 6: Final answer
    x = 1,393.78

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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.