Home / 4,428.46-6,639.06-2,087.32

Finding the Fourth Proportional to 4,428.46, 6,639.06 and 2,087.32

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Solution

The fourth proportional to 4,428.46, 6,639.06 and 2,087.32 is: 3,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.46 : 6,639.06 = 2,087.32 : x
  2. Step 2: Convert to fraction form
    4,428.46/6,639.06 = 2,087.32/x
  3. Step 3: Cross multiply
    4,428.46x = 6,639.06 × 2,087.32
  4. Step 4: Simplify right side
    4,428.46x = 13,857,842.72
  5. Step 5: Solve for x
    x = 13,857,842.72/4,428.46
  6. Step 6: Final answer
    x = 3,129.27

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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.