Home / 3,679.23-5,520.32-1,339.40

Finding the Fourth Proportional to 3,679.23, 5,520.32 and 1,339.40

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Solution

The fourth proportional to 3,679.23, 5,520.32 and 1,339.40 is: 2,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.23 : 5,520.32 = 1,339.40 : x
  2. Step 2: Convert to fraction form
    3,679.23/5,520.32 = 1,339.40/x
  3. Step 3: Cross multiply
    3,679.23x = 5,520.32 × 1,339.40
  4. Step 4: Simplify right side
    3,679.23x = 7,393,887.33
  5. Step 5: Solve for x
    x = 7,393,887.33/3,679.23
  6. Step 6: Final answer
    x = 2,009.63

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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.