Home / 4,428.40-6,639.18-2,869.96

Finding the Fourth Proportional to 4,428.40, 6,639.18 and 2,869.96

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Solution

The fourth proportional to 4,428.40, 6,639.18 and 2,869.96 is: 4,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.40 : 6,639.18 = 2,869.96 : x
  2. Step 2: Convert to fraction form
    4,428.40/6,639.18 = 2,869.96/x
  3. Step 3: Cross multiply
    4,428.40x = 6,639.18 × 2,869.96
  4. Step 4: Simplify right side
    4,428.40x = 19,054,181.03
  5. Step 5: Solve for x
    x = 19,054,181.03/4,428.40
  6. Step 6: Final answer
    x = 4,302.72

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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.