Home / 2,991.20-4,486.73-1,043.42

Finding the Fourth Proportional to 2,991.20, 4,486.73 and 1,043.42

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Solution

The fourth proportional to 2,991.20, 4,486.73 and 1,043.42 is: 1,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.20 : 4,486.73 = 1,043.42 : x
  2. Step 2: Convert to fraction form
    2,991.20/4,486.73 = 1,043.42/x
  3. Step 3: Cross multiply
    2,991.20x = 4,486.73 × 1,043.42
  4. Step 4: Simplify right side
    2,991.20x = 4,681,516.17
  5. Step 5: Solve for x
    x = 4,681,516.17/2,991.20
  6. Step 6: Final answer
    x = 1,565.10

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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.