Home / 9,115.50-13,673.26-2,190

Finding the Fourth Proportional to 9,115.50, 13,673.26 and 2,190

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Solution

The fourth proportional to 9,115.50, 13,673.26 and 2,190 is: 3,285.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.50 : 13,673.26 = 2,190 : x
  2. Step 2: Convert to fraction form
    9,115.50/13,673.26 = 2,190/x
  3. Step 3: Cross multiply
    9,115.50x = 13,673.26 × 2,190
  4. Step 4: Simplify right side
    9,115.50x = 29,944,439.40
  5. Step 5: Solve for x
    x = 29,944,439.40/9,115.50
  6. Step 6: Final answer
    x = 3,285.00

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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.