Home / 3,257.65-4,885.26-1,309.20

Finding the Fourth Proportional to 3,257.65, 4,885.26 and 1,309.20

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Solution

The fourth proportional to 3,257.65, 4,885.26 and 1,309.20 is: 1,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.65 : 4,885.26 = 1,309.20 : x
  2. Step 2: Convert to fraction form
    3,257.65/4,885.26 = 1,309.20/x
  3. Step 3: Cross multiply
    3,257.65x = 4,885.26 × 1,309.20
  4. Step 4: Simplify right side
    3,257.65x = 6,395,782.39
  5. Step 5: Solve for x
    x = 6,395,782.39/3,257.65
  6. Step 6: Final answer
    x = 1,963.31

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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.