Home / 7,487.40-11,231.10-2,556.60

Finding the Fourth Proportional to 7,487.40, 11,231.10 and 2,556.60

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Solution

The fourth proportional to 7,487.40, 11,231.10 and 2,556.60 is: 3,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.40 : 11,231.10 = 2,556.60 : x
  2. Step 2: Convert to fraction form
    7,487.40/11,231.10 = 2,556.60/x
  3. Step 3: Cross multiply
    7,487.40x = 11,231.10 × 2,556.60
  4. Step 4: Simplify right side
    7,487.40x = 28,713,430.26
  5. Step 5: Solve for x
    x = 28,713,430.26/7,487.40
  6. Step 6: Final answer
    x = 3,834.90

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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.