Home / 5,560.72-7,678.20-3,439.36

Finding the Fourth Proportional to 5,560.72, 7,678.20 and 3,439.36

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Solution

The fourth proportional to 5,560.72, 7,678.20 and 3,439.36 is: 4,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,560.72 : 7,678.20 = 3,439.36 : x
  2. Step 2: Convert to fraction form
    5,560.72/7,678.20 = 3,439.36/x
  3. Step 3: Cross multiply
    5,560.72x = 7,678.20 × 3,439.36
  4. Step 4: Simplify right side
    5,560.72x = 26,408,093.95
  5. Step 5: Solve for x
    x = 26,408,093.95/5,560.72
  6. Step 6: Final answer
    x = 4,749.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.