Home / 3,445.18-4,747.31-3,259.09

Finding the Fourth Proportional to 3,445.18, 4,747.31 and 3,259.09

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Solution

The fourth proportional to 3,445.18, 4,747.31 and 3,259.09 is: 4,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.18 : 4,747.31 = 3,259.09 : x
  2. Step 2: Convert to fraction form
    3,445.18/4,747.31 = 3,259.09/x
  3. Step 3: Cross multiply
    3,445.18x = 4,747.31 × 3,259.09
  4. Step 4: Simplify right side
    3,445.18x = 15,471,912.41
  5. Step 5: Solve for x
    x = 15,471,912.41/3,445.18
  6. Step 6: Final answer
    x = 4,490.89

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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.