Home / 5,309.30-7,963.97-1,611.56

Finding the Fourth Proportional to 5,309.30, 7,963.97 and 1,611.56

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Solution

The fourth proportional to 5,309.30, 7,963.97 and 1,611.56 is: 2,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.30 : 7,963.97 = 1,611.56 : x
  2. Step 2: Convert to fraction form
    5,309.30/7,963.97 = 1,611.56/x
  3. Step 3: Cross multiply
    5,309.30x = 7,963.97 × 1,611.56
  4. Step 4: Simplify right side
    5,309.30x = 12,834,439.43
  5. Step 5: Solve for x
    x = 12,834,439.43/5,309.30
  6. Step 6: Final answer
    x = 2,417.35

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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.