Home / 2,188.19-3,281.20-955.07

Finding the Fourth Proportional to 2,188.19, 3,281.20 and 955.07

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Solution

The fourth proportional to 2,188.19, 3,281.20 and 955.07 is: 1,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.19 : 3,281.20 = 955.07 : x
  2. Step 2: Convert to fraction form
    2,188.19/3,281.20 = 955.07/x
  3. Step 3: Cross multiply
    2,188.19x = 3,281.20 × 955.07
  4. Step 4: Simplify right side
    2,188.19x = 3,133,775.68
  5. Step 5: Solve for x
    x = 3,133,775.68/2,188.19
  6. Step 6: Final answer
    x = 1,432.13

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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.