Home / 2,019.99-2,787.44-1,135.62

Finding the Fourth Proportional to 2,019.99, 2,787.44 and 1,135.62

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Solution

The fourth proportional to 2,019.99, 2,787.44 and 1,135.62 is: 1,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.99 : 2,787.44 = 1,135.62 : x
  2. Step 2: Convert to fraction form
    2,019.99/2,787.44 = 1,135.62/x
  3. Step 3: Cross multiply
    2,019.99x = 2,787.44 × 1,135.62
  4. Step 4: Simplify right side
    2,019.99x = 3,165,466.93
  5. Step 5: Solve for x
    x = 3,165,466.93/2,019.99
  6. Step 6: Final answer
    x = 1,567.07

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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.