Home / 3,378.05-5,058.83-1,912.76

Finding the Fourth Proportional to 3,378.05, 5,058.83 and 1,912.76

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Solution

The fourth proportional to 3,378.05, 5,058.83 and 1,912.76 is: 2,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.05 : 5,058.83 = 1,912.76 : x
  2. Step 2: Convert to fraction form
    3,378.05/5,058.83 = 1,912.76/x
  3. Step 3: Cross multiply
    3,378.05x = 5,058.83 × 1,912.76
  4. Step 4: Simplify right side
    3,378.05x = 9,676,307.16
  5. Step 5: Solve for x
    x = 9,676,307.16/3,378.05
  6. Step 6: Final answer
    x = 2,864.47

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1.5x scale

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.