Home / 3,619.28-5,428.88-2,893.46

Finding the Fourth Proportional to 3,619.28, 5,428.88 and 2,893.46

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Solution

The fourth proportional to 3,619.28, 5,428.88 and 2,893.46 is: 4,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.28 : 5,428.88 = 2,893.46 : x
  2. Step 2: Convert to fraction form
    3,619.28/5,428.88 = 2,893.46/x
  3. Step 3: Cross multiply
    3,619.28x = 5,428.88 × 2,893.46
  4. Step 4: Simplify right side
    3,619.28x = 15,708,205.51
  5. Step 5: Solve for x
    x = 15,708,205.51/3,619.28
  6. Step 6: Final answer
    x = 4,340.15

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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.