Home / 4,812.31-7,218.74-1,349.83

Finding the Fourth Proportional to 4,812.31, 7,218.74 and 1,349.83

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Solution

The fourth proportional to 4,812.31, 7,218.74 and 1,349.83 is: 2,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.31 : 7,218.74 = 1,349.83 : x
  2. Step 2: Convert to fraction form
    4,812.31/7,218.74 = 1,349.83/x
  3. Step 3: Cross multiply
    4,812.31x = 7,218.74 × 1,349.83
  4. Step 4: Simplify right side
    4,812.31x = 9,744,071.81
  5. Step 5: Solve for x
    x = 9,744,071.81/4,812.31
  6. Step 6: Final answer
    x = 2,024.82

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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.