Home / 3,389.42-5,082.30-1,309.95

Finding the Fourth Proportional to 3,389.42, 5,082.30 and 1,309.95

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Solution

The fourth proportional to 3,389.42, 5,082.30 and 1,309.95 is: 1,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.42 : 5,082.30 = 1,309.95 : x
  2. Step 2: Convert to fraction form
    3,389.42/5,082.30 = 1,309.95/x
  3. Step 3: Cross multiply
    3,389.42x = 5,082.30 × 1,309.95
  4. Step 4: Simplify right side
    3,389.42x = 6,657,558.89
  5. Step 5: Solve for x
    x = 6,657,558.89/3,389.42
  6. Step 6: Final answer
    x = 1,964.22

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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.