Home / 4,006.20-6,009.78-1,408.76

Finding the Fourth Proportional to 4,006.20, 6,009.78 and 1,408.76

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Solution

The fourth proportional to 4,006.20, 6,009.78 and 1,408.76 is: 2,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,006.20 : 6,009.78 = 1,408.76 : x
  2. Step 2: Convert to fraction form
    4,006.20/6,009.78 = 1,408.76/x
  3. Step 3: Cross multiply
    4,006.20x = 6,009.78 × 1,408.76
  4. Step 4: Simplify right side
    4,006.20x = 8,466,337.67
  5. Step 5: Solve for x
    x = 8,466,337.67/4,006.20
  6. Step 6: Final answer
    x = 2,113.31

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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.