Home / 4,270.29-6,405.64-1,308.53

Finding the Fourth Proportional to 4,270.29, 6,405.64 and 1,308.53

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Solution

The fourth proportional to 4,270.29, 6,405.64 and 1,308.53 is: 1,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.29 : 6,405.64 = 1,308.53 : x
  2. Step 2: Convert to fraction form
    4,270.29/6,405.64 = 1,308.53/x
  3. Step 3: Cross multiply
    4,270.29x = 6,405.64 × 1,308.53
  4. Step 4: Simplify right side
    4,270.29x = 8,381,933.54
  5. Step 5: Solve for x
    x = 8,381,933.54/4,270.29
  6. Step 6: Final answer
    x = 1,962.85

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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.