Home / 3,162.19-4,744.05-1,214.40

Finding the Fourth Proportional to 3,162.19, 4,744.05 and 1,214.40

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Solution

The fourth proportional to 3,162.19, 4,744.05 and 1,214.40 is: 1,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.19 : 4,744.05 = 1,214.40 : x
  2. Step 2: Convert to fraction form
    3,162.19/4,744.05 = 1,214.40/x
  3. Step 3: Cross multiply
    3,162.19x = 4,744.05 × 1,214.40
  4. Step 4: Simplify right side
    3,162.19x = 5,761,151.98
  5. Step 5: Solve for x
    x = 5,761,151.98/3,162.19
  6. Step 6: Final answer
    x = 1,821.89

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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.