Home / 6,815.70-10,215.45-3,527.10

Finding the Fourth Proportional to 6,815.70, 10,215.45 and 3,527.10

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Solution

The fourth proportional to 6,815.70, 10,215.45 and 3,527.10 is: 5,286.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.70 : 10,215.45 = 3,527.10 : x
  2. Step 2: Convert to fraction form
    6,815.70/10,215.45 = 3,527.10/x
  3. Step 3: Cross multiply
    6,815.70x = 10,215.45 × 3,527.10
  4. Step 4: Simplify right side
    6,815.70x = 36,030,913.70
  5. Step 5: Solve for x
    x = 36,030,913.70/6,815.70
  6. Step 6: Final answer
    x = 5,286.46

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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.