Home / 2,337.80-3,226.39-1,289.86

Finding the Fourth Proportional to 2,337.80, 3,226.39 and 1,289.86

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Solution

The fourth proportional to 2,337.80, 3,226.39 and 1,289.86 is: 1,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,337.80 : 3,226.39 = 1,289.86 : x
  2. Step 2: Convert to fraction form
    2,337.80/3,226.39 = 1,289.86/x
  3. Step 3: Cross multiply
    2,337.80x = 3,226.39 × 1,289.86
  4. Step 4: Simplify right side
    2,337.80x = 4,161,580.11
  5. Step 5: Solve for x
    x = 4,161,580.11/2,337.80
  6. Step 6: Final answer
    x = 1,780.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.