Home / 6,420.14-9,631.33-2,262.56

Finding the Fourth Proportional to 6,420.14, 9,631.33 and 2,262.56

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Solution

The fourth proportional to 6,420.14, 9,631.33 and 2,262.56 is: 3,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.14 : 9,631.33 = 2,262.56 : x
  2. Step 2: Convert to fraction form
    6,420.14/9,631.33 = 2,262.56/x
  3. Step 3: Cross multiply
    6,420.14x = 9,631.33 × 2,262.56
  4. Step 4: Simplify right side
    6,420.14x = 21,791,441.64
  5. Step 5: Solve for x
    x = 21,791,441.64/6,420.14
  6. Step 6: Final answer
    x = 3,394.23

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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.