Home / 2,020.08-2,787.72-1,135.92

Finding the Fourth Proportional to 2,020.08, 2,787.72 and 1,135.92

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Solution

The fourth proportional to 2,020.08, 2,787.72 and 1,135.92 is: 1,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.08 : 2,787.72 = 1,135.92 : x
  2. Step 2: Convert to fraction form
    2,020.08/2,787.72 = 1,135.92/x
  3. Step 3: Cross multiply
    2,020.08x = 2,787.72 × 1,135.92
  4. Step 4: Simplify right side
    2,020.08x = 3,166,626.90
  5. Step 5: Solve for x
    x = 3,166,626.90/2,020.08
  6. Step 6: Final answer
    x = 1,567.57

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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.