Home / 3,136.56-4,326.91-2,639.01

Finding the Fourth Proportional to 3,136.56, 4,326.91 and 2,639.01

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Solution

The fourth proportional to 3,136.56, 4,326.91 and 2,639.01 is: 3,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.56 : 4,326.91 = 2,639.01 : x
  2. Step 2: Convert to fraction form
    3,136.56/4,326.91 = 2,639.01/x
  3. Step 3: Cross multiply
    3,136.56x = 4,326.91 × 2,639.01
  4. Step 4: Simplify right side
    3,136.56x = 11,418,758.76
  5. Step 5: Solve for x
    x = 11,418,758.76/3,136.56
  6. Step 6: Final answer
    x = 3,640.54

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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.