Home / 2,136.99-2,949.39-1,253.28

Finding the Fourth Proportional to 2,136.99, 2,949.39 and 1,253.28

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Solution

The fourth proportional to 2,136.99, 2,949.39 and 1,253.28 is: 1,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.99 : 2,949.39 = 1,253.28 : x
  2. Step 2: Convert to fraction form
    2,136.99/2,949.39 = 1,253.28/x
  3. Step 3: Cross multiply
    2,136.99x = 2,949.39 × 1,253.28
  4. Step 4: Simplify right side
    2,136.99x = 3,696,411.50
  5. Step 5: Solve for x
    x = 3,696,411.50/2,136.99
  6. Step 6: Final answer
    x = 1,729.73

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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.