Home / 4,931.66-7,398.68-1,644.78

Finding the Fourth Proportional to 4,931.66, 7,398.68 and 1,644.78

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Solution

The fourth proportional to 4,931.66, 7,398.68 and 1,644.78 is: 2,467.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.66 : 7,398.68 = 1,644.78 : x
  2. Step 2: Convert to fraction form
    4,931.66/7,398.68 = 1,644.78/x
  3. Step 3: Cross multiply
    4,931.66x = 7,398.68 × 1,644.78
  4. Step 4: Simplify right side
    4,931.66x = 12,169,200.89
  5. Step 5: Solve for x
    x = 12,169,200.89/4,931.66
  6. Step 6: Final answer
    x = 2,467.57

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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.