Home / 2,272.59-3,136.41-1,388.93

Finding the Fourth Proportional to 2,272.59, 3,136.41 and 1,388.93

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Solution

The fourth proportional to 2,272.59, 3,136.41 and 1,388.93 is: 1,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.59 : 3,136.41 = 1,388.93 : x
  2. Step 2: Convert to fraction form
    2,272.59/3,136.41 = 1,388.93/x
  3. Step 3: Cross multiply
    2,272.59x = 3,136.41 × 1,388.93
  4. Step 4: Simplify right side
    2,272.59x = 4,356,238.26
  5. Step 5: Solve for x
    x = 4,356,238.26/2,272.59
  6. Step 6: Final answer
    x = 1,916.86

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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.