Home / 4,261.64-6,390.90-1,487.79

Finding the Fourth Proportional to 4,261.64, 6,390.90 and 1,487.79

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Solution

The fourth proportional to 4,261.64, 6,390.90 and 1,487.79 is: 2,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.64 : 6,390.90 = 1,487.79 : x
  2. Step 2: Convert to fraction form
    4,261.64/6,390.90 = 1,487.79/x
  3. Step 3: Cross multiply
    4,261.64x = 6,390.90 × 1,487.79
  4. Step 4: Simplify right side
    4,261.64x = 9,508,317.11
  5. Step 5: Solve for x
    x = 9,508,317.11/4,261.64
  6. Step 6: Final answer
    x = 2,231.14

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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.