Home / 2,136.39-2,948.21-1,192.16

Finding the Fourth Proportional to 2,136.39, 2,948.21 and 1,192.16

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Solution

The fourth proportional to 2,136.39, 2,948.21 and 1,192.16 is: 1,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.39 : 2,948.21 = 1,192.16 : x
  2. Step 2: Convert to fraction form
    2,136.39/2,948.21 = 1,192.16/x
  3. Step 3: Cross multiply
    2,136.39x = 2,948.21 × 1,192.16
  4. Step 4: Simplify right side
    2,136.39x = 3,514,723.29
  5. Step 5: Solve for x
    x = 3,514,723.29/2,136.39
  6. Step 6: Final answer
    x = 1,645.17

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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.