Home / 4,428.78-6,111.61-2,439.28

Finding the Fourth Proportional to 4,428.78, 6,111.61 and 2,439.28

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Solution

The fourth proportional to 4,428.78, 6,111.61 and 2,439.28 is: 3,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.78 : 6,111.61 = 2,439.28 : x
  2. Step 2: Convert to fraction form
    4,428.78/6,111.61 = 2,439.28/x
  3. Step 3: Cross multiply
    4,428.78x = 6,111.61 × 2,439.28
  4. Step 4: Simplify right side
    4,428.78x = 14,907,928.04
  5. Step 5: Solve for x
    x = 14,907,928.04/4,428.78
  6. Step 6: Final answer
    x = 3,366.15

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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.