Home / 4,742.48-7,113.32-2,279.28

Finding the Fourth Proportional to 4,742.48, 7,113.32 and 2,279.28

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Solution

The fourth proportional to 4,742.48, 7,113.32 and 2,279.28 is: 3,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.48 : 7,113.32 = 2,279.28 : x
  2. Step 2: Convert to fraction form
    4,742.48/7,113.32 = 2,279.28/x
  3. Step 3: Cross multiply
    4,742.48x = 7,113.32 × 2,279.28
  4. Step 4: Simplify right side
    4,742.48x = 16,213,248.01
  5. Step 5: Solve for x
    x = 16,213,248.01/4,742.48
  6. Step 6: Final answer
    x = 3,418.73

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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.