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Finding the Fourth Proportional to 4,481, 6,720.58 and 1,559.44

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Solution

The fourth proportional to 4,481, 6,720.58 and 1,559.44 is: 2,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481 : 6,720.58 = 1,559.44 : x
  2. Step 2: Convert to fraction form
    4,481/6,720.58 = 1,559.44/x
  3. Step 3: Cross multiply
    4,481x = 6,720.58 × 1,559.44
  4. Step 4: Simplify right side
    4,481x = 10,480,341.28
  5. Step 5: Solve for x
    x = 10,480,341.28/4,481
  6. Step 6: Final answer
    x = 2,338.84

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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.