Home / 3,988.36-5,967.42-2,258.20

Finding the Fourth Proportional to 3,988.36, 5,967.42 and 2,258.20

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Solution

The fourth proportional to 3,988.36, 5,967.42 and 2,258.20 is: 3,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.36 : 5,967.42 = 2,258.20 : x
  2. Step 2: Convert to fraction form
    3,988.36/5,967.42 = 2,258.20/x
  3. Step 3: Cross multiply
    3,988.36x = 5,967.42 × 2,258.20
  4. Step 4: Simplify right side
    3,988.36x = 13,475,627.84
  5. Step 5: Solve for x
    x = 13,475,627.84/3,988.36
  6. Step 6: Final answer
    x = 3,378.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.