Home / 2,020.75-2,787.99-1,136.41

Finding the Fourth Proportional to 2,020.75, 2,787.99 and 1,136.41

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Solution

The fourth proportional to 2,020.75, 2,787.99 and 1,136.41 is: 1,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.75 : 2,787.99 = 1,136.41 : x
  2. Step 2: Convert to fraction form
    2,020.75/2,787.99 = 1,136.41/x
  3. Step 3: Cross multiply
    2,020.75x = 2,787.99 × 1,136.41
  4. Step 4: Simplify right side
    2,020.75x = 3,168,299.72
  5. Step 5: Solve for x
    x = 3,168,299.72/2,020.75
  6. Step 6: Final answer
    x = 1,567.88

Related Problems

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Half scale
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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.