Home / 3,289.40-4,934.40-1,341.20

Finding the Fourth Proportional to 3,289.40, 4,934.40 and 1,341.20

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Solution

The fourth proportional to 3,289.40, 4,934.40 and 1,341.20 is: 2,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.40 : 4,934.40 = 1,341.20 : x
  2. Step 2: Convert to fraction form
    3,289.40/4,934.40 = 1,341.20/x
  3. Step 3: Cross multiply
    3,289.40x = 4,934.40 × 1,341.20
  4. Step 4: Simplify right side
    3,289.40x = 6,618,017.28
  5. Step 5: Solve for x
    x = 6,618,017.28/3,289.40
  6. Step 6: Final answer
    x = 2,011.92

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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.