Home / 2,136.08-2,947.96-1,192.18

Finding the Fourth Proportional to 2,136.08, 2,947.96 and 1,192.18

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Solution

The fourth proportional to 2,136.08, 2,947.96 and 1,192.18 is: 1,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.08 : 2,947.96 = 1,192.18 : x
  2. Step 2: Convert to fraction form
    2,136.08/2,947.96 = 1,192.18/x
  3. Step 3: Cross multiply
    2,136.08x = 2,947.96 × 1,192.18
  4. Step 4: Simplify right side
    2,136.08x = 3,514,498.95
  5. Step 5: Solve for x
    x = 3,514,498.95/2,136.08
  6. Step 6: Final answer
    x = 1,645.30

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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.