Home / 3,317.78-4,977.84-1,009.28

Finding the Fourth Proportional to 3,317.78, 4,977.84 and 1,009.28

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Solution

The fourth proportional to 3,317.78, 4,977.84 and 1,009.28 is: 1,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.78 : 4,977.84 = 1,009.28 : x
  2. Step 2: Convert to fraction form
    3,317.78/4,977.84 = 1,009.28/x
  3. Step 3: Cross multiply
    3,317.78x = 4,977.84 × 1,009.28
  4. Step 4: Simplify right side
    3,317.78x = 5,024,034.36
  5. Step 5: Solve for x
    x = 5,024,034.36/3,317.78
  6. Step 6: Final answer
    x = 1,514.28

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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.