Home / 3,114.89-4,672.34-923.81

Finding the Fourth Proportional to 3,114.89, 4,672.34 and 923.81

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Solution

The fourth proportional to 3,114.89, 4,672.34 and 923.81 is: 1,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.89 : 4,672.34 = 923.81 : x
  2. Step 2: Convert to fraction form
    3,114.89/4,672.34 = 923.81/x
  3. Step 3: Cross multiply
    3,114.89x = 4,672.34 × 923.81
  4. Step 4: Simplify right side
    3,114.89x = 4,316,354.42
  5. Step 5: Solve for x
    x = 4,316,354.42/3,114.89
  6. Step 6: Final answer
    x = 1,385.72

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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.