Home / 4,457.31-6,687.45-2,811.93

Finding the Fourth Proportional to 4,457.31, 6,687.45 and 2,811.93

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Solution

The fourth proportional to 4,457.31, 6,687.45 and 2,811.93 is: 4,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.31 : 6,687.45 = 2,811.93 : x
  2. Step 2: Convert to fraction form
    4,457.31/6,687.45 = 2,811.93/x
  3. Step 3: Cross multiply
    4,457.31x = 6,687.45 × 2,811.93
  4. Step 4: Simplify right side
    4,457.31x = 18,804,641.28
  5. Step 5: Solve for x
    x = 18,804,641.28/4,457.31
  6. Step 6: Final answer
    x = 4,218.83

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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.