Home / 4,743.48-7,118.72-2,279.72

Finding the Fourth Proportional to 4,743.48, 7,118.72 and 2,279.72

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Solution

The fourth proportional to 4,743.48, 7,118.72 and 2,279.72 is: 3,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.48 : 7,118.72 = 2,279.72 : x
  2. Step 2: Convert to fraction form
    4,743.48/7,118.72 = 2,279.72/x
  3. Step 3: Cross multiply
    4,743.48x = 7,118.72 × 2,279.72
  4. Step 4: Simplify right side
    4,743.48x = 16,228,688.36
  5. Step 5: Solve for x
    x = 16,228,688.36/4,743.48
  6. Step 6: Final answer
    x = 3,421.26

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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.