Home / 6,421.14-9,631.44-2,261.16

Finding the Fourth Proportional to 6,421.14, 9,631.44 and 2,261.16

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Solution

The fourth proportional to 6,421.14, 9,631.44 and 2,261.16 is: 3,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.14 : 9,631.44 = 2,261.16 : x
  2. Step 2: Convert to fraction form
    6,421.14/9,631.44 = 2,261.16/x
  3. Step 3: Cross multiply
    6,421.14x = 9,631.44 × 2,261.16
  4. Step 4: Simplify right side
    6,421.14x = 21,778,226.87
  5. Step 5: Solve for x
    x = 21,778,226.87/6,421.14
  6. Step 6: Final answer
    x = 3,391.64

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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.