Home / 3,680.16-5,518.80-1,339.71

Finding the Fourth Proportional to 3,680.16, 5,518.80 and 1,339.71

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Solution

The fourth proportional to 3,680.16, 5,518.80 and 1,339.71 is: 2,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.16 : 5,518.80 = 1,339.71 : x
  2. Step 2: Convert to fraction form
    3,680.16/5,518.80 = 1,339.71/x
  3. Step 3: Cross multiply
    3,680.16x = 5,518.80 × 1,339.71
  4. Step 4: Simplify right side
    3,680.16x = 7,393,591.55
  5. Step 5: Solve for x
    x = 7,393,591.55/3,680.16
  6. Step 6: Final answer
    x = 2,009.04

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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.