Home / 2,991.32-4,487.65-1,142.39

Finding the Fourth Proportional to 2,991.32, 4,487.65 and 1,142.39

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Solution

The fourth proportional to 2,991.32, 4,487.65 and 1,142.39 is: 1,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.32 : 4,487.65 = 1,142.39 : x
  2. Step 2: Convert to fraction form
    2,991.32/4,487.65 = 1,142.39/x
  3. Step 3: Cross multiply
    2,991.32x = 4,487.65 × 1,142.39
  4. Step 4: Simplify right side
    2,991.32x = 5,126,621.19
  5. Step 5: Solve for x
    x = 5,126,621.19/2,991.32
  6. Step 6: Final answer
    x = 1,713.84

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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.