Home / 5,125.04-7,689.78-2,661.62

Finding the Fourth Proportional to 5,125.04, 7,689.78 and 2,661.62

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Solution

The fourth proportional to 5,125.04, 7,689.78 and 2,661.62 is: 3,993.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.04 : 7,689.78 = 2,661.62 : x
  2. Step 2: Convert to fraction form
    5,125.04/7,689.78 = 2,661.62/x
  3. Step 3: Cross multiply
    5,125.04x = 7,689.78 × 2,661.62
  4. Step 4: Simplify right side
    5,125.04x = 20,467,272.24
  5. Step 5: Solve for x
    x = 20,467,272.24/5,125.04
  6. Step 6: Final answer
    x = 3,993.58

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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.