Home / 2,767.16-3,820.13-2,136.32

Finding the Fourth Proportional to 2,767.16, 3,820.13 and 2,136.32

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Solution

The fourth proportional to 2,767.16, 3,820.13 and 2,136.32 is: 2,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.16 : 3,820.13 = 2,136.32 : x
  2. Step 2: Convert to fraction form
    2,767.16/3,820.13 = 2,136.32/x
  3. Step 3: Cross multiply
    2,767.16x = 3,820.13 × 2,136.32
  4. Step 4: Simplify right side
    2,767.16x = 8,161,020.12
  5. Step 5: Solve for x
    x = 8,161,020.12/2,767.16
  6. Step 6: Final answer
    x = 2,949.24

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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.