Home / 3,258.07-4,494.43-1,999.40

Finding the Fourth Proportional to 3,258.07, 4,494.43 and 1,999.40

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Solution

The fourth proportional to 3,258.07, 4,494.43 and 1,999.40 is: 2,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.07 : 4,494.43 = 1,999.40 : x
  2. Step 2: Convert to fraction form
    3,258.07/4,494.43 = 1,999.40/x
  3. Step 3: Cross multiply
    3,258.07x = 4,494.43 × 1,999.40
  4. Step 4: Simplify right side
    3,258.07x = 8,986,130.87
  5. Step 5: Solve for x
    x = 8,986,130.87/3,258.07
  6. Step 6: Final answer
    x = 2,758.11

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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.