Home / 3,133.18-4,699.40-824.86

Finding the Fourth Proportional to 3,133.18, 4,699.40 and 824.86

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Solution

The fourth proportional to 3,133.18, 4,699.40 and 824.86 is: 1,237.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.18 : 4,699.40 = 824.86 : x
  2. Step 2: Convert to fraction form
    3,133.18/4,699.40 = 824.86/x
  3. Step 3: Cross multiply
    3,133.18x = 4,699.40 × 824.86
  4. Step 4: Simplify right side
    3,133.18x = 3,876,347.08
  5. Step 5: Solve for x
    x = 3,876,347.08/3,133.18
  6. Step 6: Final answer
    x = 1,237.19

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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.