Home / 3,982.42-5,495.56-2,214.18

Finding the Fourth Proportional to 3,982.42, 5,495.56 and 2,214.18

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Solution

The fourth proportional to 3,982.42, 5,495.56 and 2,214.18 is: 3,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.42 : 5,495.56 = 2,214.18 : x
  2. Step 2: Convert to fraction form
    3,982.42/5,495.56 = 2,214.18/x
  3. Step 3: Cross multiply
    3,982.42x = 5,495.56 × 2,214.18
  4. Step 4: Simplify right side
    3,982.42x = 12,168,159.04
  5. Step 5: Solve for x
    x = 12,168,159.04/3,982.42
  6. Step 6: Final answer
    x = 3,055.47

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1.5x scale

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.