Home / 3,391.45-5,088.29-2,140.60

Finding the Fourth Proportional to 3,391.45, 5,088.29 and 2,140.60

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Solution

The fourth proportional to 3,391.45, 5,088.29 and 2,140.60 is: 3,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.45 : 5,088.29 = 2,140.60 : x
  2. Step 2: Convert to fraction form
    3,391.45/5,088.29 = 2,140.60/x
  3. Step 3: Cross multiply
    3,391.45x = 5,088.29 × 2,140.60
  4. Step 4: Simplify right side
    3,391.45x = 10,891,970.15
  5. Step 5: Solve for x
    x = 10,891,970.15/3,391.45
  6. Step 6: Final answer
    x = 3,211.60

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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.