Home / 7,740.48-11,609.76-2,809.92

Finding the Fourth Proportional to 7,740.48, 11,609.76 and 2,809.92

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Solution

The fourth proportional to 7,740.48, 11,609.76 and 2,809.92 is: 4,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.48 : 11,609.76 = 2,809.92 : x
  2. Step 2: Convert to fraction form
    7,740.48/11,609.76 = 2,809.92/x
  3. Step 3: Cross multiply
    7,740.48x = 11,609.76 × 2,809.92
  4. Step 4: Simplify right side
    7,740.48x = 32,622,496.82
  5. Step 5: Solve for x
    x = 32,622,496.82/7,740.48
  6. Step 6: Final answer
    x = 4,214.53

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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.