Home / 1,962.12-2,943.72-1,747.20

Finding the Fourth Proportional to 1,962.12, 2,943.72 and 1,747.20

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Solution

The fourth proportional to 1,962.12, 2,943.72 and 1,747.20 is: 2,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.12 : 2,943.72 = 1,747.20 : x
  2. Step 2: Convert to fraction form
    1,962.12/2,943.72 = 1,747.20/x
  3. Step 3: Cross multiply
    1,962.12x = 2,943.72 × 1,747.20
  4. Step 4: Simplify right side
    1,962.12x = 5,143,267.58
  5. Step 5: Solve for x
    x = 5,143,267.58/1,962.12
  6. Step 6: Final answer
    x = 2,621.28

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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.