Home / 2,188.92-3,281.76-1,323.03

Finding the Fourth Proportional to 2,188.92, 3,281.76 and 1,323.03

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Solution

The fourth proportional to 2,188.92, 3,281.76 and 1,323.03 is: 1,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.92 : 3,281.76 = 1,323.03 : x
  2. Step 2: Convert to fraction form
    2,188.92/3,281.76 = 1,323.03/x
  3. Step 3: Cross multiply
    2,188.92x = 3,281.76 × 1,323.03
  4. Step 4: Simplify right side
    2,188.92x = 4,341,866.93
  5. Step 5: Solve for x
    x = 4,341,866.93/2,188.92
  6. Step 6: Final answer
    x = 1,983.57

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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.