Home / 5,330.78-7,999.62-2,409.11

Finding the Fourth Proportional to 5,330.78, 7,999.62 and 2,409.11

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Solution

The fourth proportional to 5,330.78, 7,999.62 and 2,409.11 is: 3,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.78 : 7,999.62 = 2,409.11 : x
  2. Step 2: Convert to fraction form
    5,330.78/7,999.62 = 2,409.11/x
  3. Step 3: Cross multiply
    5,330.78x = 7,999.62 × 2,409.11
  4. Step 4: Simplify right side
    5,330.78x = 19,271,924.54
  5. Step 5: Solve for x
    x = 19,271,924.54/5,330.78
  6. Step 6: Final answer
    x = 3,615.22

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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.