Home / 5,009.12-7,510.52-1,721.92

Finding the Fourth Proportional to 5,009.12, 7,510.52 and 1,721.92

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Solution

The fourth proportional to 5,009.12, 7,510.52 and 1,721.92 is: 2,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.12 : 7,510.52 = 1,721.92 : x
  2. Step 2: Convert to fraction form
    5,009.12/7,510.52 = 1,721.92/x
  3. Step 3: Cross multiply
    5,009.12x = 7,510.52 × 1,721.92
  4. Step 4: Simplify right side
    5,009.12x = 12,932,514.60
  5. Step 5: Solve for x
    x = 12,932,514.60/5,009.12
  6. Step 6: Final answer
    x = 2,581.79

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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.