Home / 2,136.30-3,204.45-1,152.15

Finding the Fourth Proportional to 2,136.30, 3,204.45 and 1,152.15

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Solution

The fourth proportional to 2,136.30, 3,204.45 and 1,152.15 is: 1,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.30 : 3,204.45 = 1,152.15 : x
  2. Step 2: Convert to fraction form
    2,136.30/3,204.45 = 1,152.15/x
  3. Step 3: Cross multiply
    2,136.30x = 3,204.45 × 1,152.15
  4. Step 4: Simplify right side
    2,136.30x = 3,692,007.07
  5. Step 5: Solve for x
    x = 3,692,007.07/2,136.30
  6. Step 6: Final answer
    x = 1,728.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.