Home / 2,020.58-2,788.08-1,136.21

Finding the Fourth Proportional to 2,020.58, 2,788.08 and 1,136.21

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Solution

The fourth proportional to 2,020.58, 2,788.08 and 1,136.21 is: 1,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.58 : 2,788.08 = 1,136.21 : x
  2. Step 2: Convert to fraction form
    2,020.58/2,788.08 = 1,136.21/x
  3. Step 3: Cross multiply
    2,020.58x = 2,788.08 × 1,136.21
  4. Step 4: Simplify right side
    2,020.58x = 3,167,861.61
  5. Step 5: Solve for x
    x = 3,167,861.61/2,020.58
  6. Step 6: Final answer
    x = 1,567.80

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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.