Home / 2,932.90-4,044.70-1,990.06

Finding the Fourth Proportional to 2,932.90, 4,044.70 and 1,990.06

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Solution

The fourth proportional to 2,932.90, 4,044.70 and 1,990.06 is: 2,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.90 : 4,044.70 = 1,990.06 : x
  2. Step 2: Convert to fraction form
    2,932.90/4,044.70 = 1,990.06/x
  3. Step 3: Cross multiply
    2,932.90x = 4,044.70 × 1,990.06
  4. Step 4: Simplify right side
    2,932.90x = 8,049,190.71
  5. Step 5: Solve for x
    x = 8,049,190.71/2,932.90
  6. Step 6: Final answer
    x = 2,744.45

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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.