Home / 2,136.30-2,949.93-1,351.74

Finding the Fourth Proportional to 2,136.30, 2,949.93 and 1,351.74

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Solution

The fourth proportional to 2,136.30, 2,949.93 and 1,351.74 is: 1,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.30 : 2,949.93 = 1,351.74 : x
  2. Step 2: Convert to fraction form
    2,136.30/2,949.93 = 1,351.74/x
  3. Step 3: Cross multiply
    2,136.30x = 2,949.93 × 1,351.74
  4. Step 4: Simplify right side
    2,136.30x = 3,987,538.38
  5. Step 5: Solve for x
    x = 3,987,538.38/2,136.30
  6. Step 6: Final answer
    x = 1,866.56

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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.