Home / 5,306.40-7,954.26-2,188.68

Finding the Fourth Proportional to 5,306.40, 7,954.26 and 2,188.68

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Solution

The fourth proportional to 5,306.40, 7,954.26 and 2,188.68 is: 3,280.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.40 : 7,954.26 = 2,188.68 : x
  2. Step 2: Convert to fraction form
    5,306.40/7,954.26 = 2,188.68/x
  3. Step 3: Cross multiply
    5,306.40x = 7,954.26 × 2,188.68
  4. Step 4: Simplify right side
    5,306.40x = 17,409,329.78
  5. Step 5: Solve for x
    x = 17,409,329.78/5,306.40
  6. Step 6: Final answer
    x = 3,280.82

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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.