Home / 2,136.63-2,948.57-1,205.13

Finding the Fourth Proportional to 2,136.63, 2,948.57 and 1,205.13

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Solution

The fourth proportional to 2,136.63, 2,948.57 and 1,205.13 is: 1,663.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.63 : 2,948.57 = 1,205.13 : x
  2. Step 2: Convert to fraction form
    2,136.63/2,948.57 = 1,205.13/x
  3. Step 3: Cross multiply
    2,136.63x = 2,948.57 × 1,205.13
  4. Step 4: Simplify right side
    2,136.63x = 3,553,410.16
  5. Step 5: Solve for x
    x = 3,553,410.16/2,136.63
  6. Step 6: Final answer
    x = 1,663.09

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Double scale
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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.