Home / 2,081.16-2,872.01-1,136.96

Finding the Fourth Proportional to 2,081.16, 2,872.01 and 1,136.96

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Solution

The fourth proportional to 2,081.16, 2,872.01 and 1,136.96 is: 1,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.16 : 2,872.01 = 1,136.96 : x
  2. Step 2: Convert to fraction form
    2,081.16/2,872.01 = 1,136.96/x
  3. Step 3: Cross multiply
    2,081.16x = 2,872.01 × 1,136.96
  4. Step 4: Simplify right side
    2,081.16x = 3,265,354.80
  5. Step 5: Solve for x
    x = 3,265,354.80/2,081.16
  6. Step 6: Final answer
    x = 1,569.01

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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.