Home / 3,565.44-4,920.40-1,993.64

Finding the Fourth Proportional to 3,565.44, 4,920.40 and 1,993.64

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Solution

The fourth proportional to 3,565.44, 4,920.40 and 1,993.64 is: 2,751.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.44 : 4,920.40 = 1,993.64 : x
  2. Step 2: Convert to fraction form
    3,565.44/4,920.40 = 1,993.64/x
  3. Step 3: Cross multiply
    3,565.44x = 4,920.40 × 1,993.64
  4. Step 4: Simplify right side
    3,565.44x = 9,809,506.26
  5. Step 5: Solve for x
    x = 9,809,506.26/3,565.44
  6. Step 6: Final answer
    x = 2,751.28

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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.