Home / 2,020.32-2,788.14-1,136.40

Finding the Fourth Proportional to 2,020.32, 2,788.14 and 1,136.40

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Solution

The fourth proportional to 2,020.32, 2,788.14 and 1,136.40 is: 1,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.32 : 2,788.14 = 1,136.40 : x
  2. Step 2: Convert to fraction form
    2,020.32/2,788.14 = 1,136.40/x
  3. Step 3: Cross multiply
    2,020.32x = 2,788.14 × 1,136.40
  4. Step 4: Simplify right side
    2,020.32x = 3,168,442.30
  5. Step 5: Solve for x
    x = 3,168,442.30/2,020.32
  6. Step 6: Final answer
    x = 1,568.29

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.