Home / 3,052.23-4,212.45-1,991.13

Finding the Fourth Proportional to 3,052.23, 4,212.45 and 1,991.13

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Solution

The fourth proportional to 3,052.23, 4,212.45 and 1,991.13 is: 2,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,052.23 : 4,212.45 = 1,991.13 : x
  2. Step 2: Convert to fraction form
    3,052.23/4,212.45 = 1,991.13/x
  3. Step 3: Cross multiply
    3,052.23x = 4,212.45 × 1,991.13
  4. Step 4: Simplify right side
    3,052.23x = 8,387,535.57
  5. Step 5: Solve for x
    x = 8,387,535.57/3,052.23
  6. Step 6: Final answer
    x = 2,748.00

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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.