Home / 3,590.49-5,385.52-2,138.88

Finding the Fourth Proportional to 3,590.49, 5,385.52 and 2,138.88

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Solution

The fourth proportional to 3,590.49, 5,385.52 and 2,138.88 is: 3,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.49 : 5,385.52 = 2,138.88 : x
  2. Step 2: Convert to fraction form
    3,590.49/5,385.52 = 2,138.88/x
  3. Step 3: Cross multiply
    3,590.49x = 5,385.52 × 2,138.88
  4. Step 4: Simplify right side
    3,590.49x = 11,518,981.02
  5. Step 5: Solve for x
    x = 11,518,981.02/3,590.49
  6. Step 6: Final answer
    x = 3,208.19

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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.