Home / 2,020.05-2,787.36-1,135.68

Finding the Fourth Proportional to 2,020.05, 2,787.36 and 1,135.68

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Solution

The fourth proportional to 2,020.05, 2,787.36 and 1,135.68 is: 1,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.05 : 2,787.36 = 1,135.68 : x
  2. Step 2: Convert to fraction form
    2,020.05/2,787.36 = 1,135.68/x
  3. Step 3: Cross multiply
    2,020.05x = 2,787.36 × 1,135.68
  4. Step 4: Simplify right side
    2,020.05x = 3,165,549.00
  5. Step 5: Solve for x
    x = 3,165,549.00/2,020.05
  6. Step 6: Final answer
    x = 1,567.06

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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.