Home / 4,308.40-6,456.45-2,455.60

Finding the Fourth Proportional to 4,308.40, 6,456.45 and 2,455.60

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Solution

The fourth proportional to 4,308.40, 6,456.45 and 2,455.60 is: 3,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.40 : 6,456.45 = 2,455.60 : x
  2. Step 2: Convert to fraction form
    4,308.40/6,456.45 = 2,455.60/x
  3. Step 3: Cross multiply
    4,308.40x = 6,456.45 × 2,455.60
  4. Step 4: Simplify right side
    4,308.40x = 15,854,458.62
  5. Step 5: Solve for x
    x = 15,854,458.62/4,308.40
  6. Step 6: Final answer
    x = 3,679.89

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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.