Home / 7,418.48-11,128.28-3,038

Finding the Fourth Proportional to 7,418.48, 11,128.28 and 3,038

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Solution

The fourth proportional to 7,418.48, 11,128.28 and 3,038 is: 4,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.48 : 11,128.28 = 3,038 : x
  2. Step 2: Convert to fraction form
    7,418.48/11,128.28 = 3,038/x
  3. Step 3: Cross multiply
    7,418.48x = 11,128.28 × 3,038
  4. Step 4: Simplify right side
    7,418.48x = 33,807,714.64
  5. Step 5: Solve for x
    x = 33,807,714.64/7,418.48
  6. Step 6: Final answer
    x = 4,557.23

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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.