Home / 3,309.30-4,959.09-1,663.56

Finding the Fourth Proportional to 3,309.30, 4,959.09 and 1,663.56

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Solution

The fourth proportional to 3,309.30, 4,959.09 and 1,663.56 is: 2,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.30 : 4,959.09 = 1,663.56 : x
  2. Step 2: Convert to fraction form
    3,309.30/4,959.09 = 1,663.56/x
  3. Step 3: Cross multiply
    3,309.30x = 4,959.09 × 1,663.56
  4. Step 4: Simplify right side
    3,309.30x = 8,249,743.76
  5. Step 5: Solve for x
    x = 8,249,743.76/3,309.30
  6. Step 6: Final answer
    x = 2,492.90

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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.