Home / 3,431.35-5,134.73-2,970.71

Finding the Fourth Proportional to 3,431.35, 5,134.73 and 2,970.71

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Solution

The fourth proportional to 3,431.35, 5,134.73 and 2,970.71 is: 4,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.35 : 5,134.73 = 2,970.71 : x
  2. Step 2: Convert to fraction form
    3,431.35/5,134.73 = 2,970.71/x
  3. Step 3: Cross multiply
    3,431.35x = 5,134.73 × 2,970.71
  4. Step 4: Simplify right side
    3,431.35x = 15,253,801.37
  5. Step 5: Solve for x
    x = 15,253,801.37/3,431.35
  6. Step 6: Final answer
    x = 4,445.42

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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.