Home / 2,136.62-2,948.46-1,253

Finding the Fourth Proportional to 2,136.62, 2,948.46 and 1,253

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Solution

The fourth proportional to 2,136.62, 2,948.46 and 1,253 is: 1,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.62 : 2,948.46 = 1,253 : x
  2. Step 2: Convert to fraction form
    2,136.62/2,948.46 = 1,253/x
  3. Step 3: Cross multiply
    2,136.62x = 2,948.46 × 1,253
  4. Step 4: Simplify right side
    2,136.62x = 3,694,420.38
  5. Step 5: Solve for x
    x = 3,694,420.38/2,136.62
  6. Step 6: Final answer
    x = 1,729.10

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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.