Home / 4,929.66-7,395.68-1,642.78

Finding the Fourth Proportional to 4,929.66, 7,395.68 and 1,642.78

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Solution

The fourth proportional to 4,929.66, 7,395.68 and 1,642.78 is: 2,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.66 : 7,395.68 = 1,642.78 : x
  2. Step 2: Convert to fraction form
    4,929.66/7,395.68 = 1,642.78/x
  3. Step 3: Cross multiply
    4,929.66x = 7,395.68 × 1,642.78
  4. Step 4: Simplify right side
    4,929.66x = 12,149,475.19
  5. Step 5: Solve for x
    x = 12,149,475.19/4,929.66
  6. Step 6: Final answer
    x = 2,464.57

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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.