Home / 3,565.30-4,919.85-1,993.09

Finding the Fourth Proportional to 3,565.30, 4,919.85 and 1,993.09

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Solution

The fourth proportional to 3,565.30, 4,919.85 and 1,993.09 is: 2,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.30 : 4,919.85 = 1,993.09 : x
  2. Step 2: Convert to fraction form
    3,565.30/4,919.85 = 1,993.09/x
  3. Step 3: Cross multiply
    3,565.30x = 4,919.85 × 1,993.09
  4. Step 4: Simplify right side
    3,565.30x = 9,805,703.84
  5. Step 5: Solve for x
    x = 9,805,703.84/3,565.30
  6. Step 6: Final answer
    x = 2,750.32

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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.