Home / 4,231.31-6,347.63-1,309.60

Finding the Fourth Proportional to 4,231.31, 6,347.63 and 1,309.60

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Solution

The fourth proportional to 4,231.31, 6,347.63 and 1,309.60 is: 1,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.31 : 6,347.63 = 1,309.60 : x
  2. Step 2: Convert to fraction form
    4,231.31/6,347.63 = 1,309.60/x
  3. Step 3: Cross multiply
    4,231.31x = 6,347.63 × 1,309.60
  4. Step 4: Simplify right side
    4,231.31x = 8,312,867.46
  5. Step 5: Solve for x
    x = 8,312,867.46/4,231.31
  6. Step 6: Final answer
    x = 1,964.61

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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.