Home / 7,207.40-10,807.65-3,699.09

Finding the Fourth Proportional to 7,207.40, 10,807.65 and 3,699.09

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Solution

The fourth proportional to 7,207.40, 10,807.65 and 3,699.09 is: 5,546.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.40 : 10,807.65 = 3,699.09 : x
  2. Step 2: Convert to fraction form
    7,207.40/10,807.65 = 3,699.09/x
  3. Step 3: Cross multiply
    7,207.40x = 10,807.65 × 3,699.09
  4. Step 4: Simplify right side
    7,207.40x = 39,978,470.04
  5. Step 5: Solve for x
    x = 39,978,470.04/7,207.40
  6. Step 6: Final answer
    x = 5,546.86

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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.