Home / 5,888.40-8,830.79-2,139.68

Finding the Fourth Proportional to 5,888.40, 8,830.79 and 2,139.68

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Solution

The fourth proportional to 5,888.40, 8,830.79 and 2,139.68 is: 3,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,888.40 : 8,830.79 = 2,139.68 : x
  2. Step 2: Convert to fraction form
    5,888.40/8,830.79 = 2,139.68/x
  3. Step 3: Cross multiply
    5,888.40x = 8,830.79 × 2,139.68
  4. Step 4: Simplify right side
    5,888.40x = 18,895,084.15
  5. Step 5: Solve for x
    x = 18,895,084.15/5,888.40
  6. Step 6: Final answer
    x = 3,208.87

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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.