Home / 3,516.40-5,269.80-2,868.40

Finding the Fourth Proportional to 3,516.40, 5,269.80 and 2,868.40

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Solution

The fourth proportional to 3,516.40, 5,269.80 and 2,868.40 is: 4,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.40 : 5,269.80 = 2,868.40 : x
  2. Step 2: Convert to fraction form
    3,516.40/5,269.80 = 2,868.40/x
  3. Step 3: Cross multiply
    3,516.40x = 5,269.80 × 2,868.40
  4. Step 4: Simplify right side
    3,516.40x = 15,115,894.32
  5. Step 5: Solve for x
    x = 15,115,894.32/3,516.40
  6. Step 6: Final answer
    x = 4,298.68

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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.