Home / 3,339.21-5,010.03-1,392.78

Finding the Fourth Proportional to 3,339.21, 5,010.03 and 1,392.78

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Solution

The fourth proportional to 3,339.21, 5,010.03 and 1,392.78 is: 2,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.21 : 5,010.03 = 1,392.78 : x
  2. Step 2: Convert to fraction form
    3,339.21/5,010.03 = 1,392.78/x
  3. Step 3: Cross multiply
    3,339.21x = 5,010.03 × 1,392.78
  4. Step 4: Simplify right side
    3,339.21x = 6,977,869.58
  5. Step 5: Solve for x
    x = 6,977,869.58/3,339.21
  6. Step 6: Final answer
    x = 2,089.68

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1.5x scale

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.