Home / 4,929.78-7,397.46-2,621.22

Finding the Fourth Proportional to 4,929.78, 7,397.46 and 2,621.22

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Solution

The fourth proportional to 4,929.78, 7,397.46 and 2,621.22 is: 3,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.78 : 7,397.46 = 2,621.22 : x
  2. Step 2: Convert to fraction form
    4,929.78/7,397.46 = 2,621.22/x
  3. Step 3: Cross multiply
    4,929.78x = 7,397.46 × 2,621.22
  4. Step 4: Simplify right side
    4,929.78x = 19,390,370.10
  5. Step 5: Solve for x
    x = 19,390,370.10/4,929.78
  6. Step 6: Final answer
    x = 3,933.31

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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.