Home / 5,009.68-7,515.20-2,087.30

Finding the Fourth Proportional to 5,009.68, 7,515.20 and 2,087.30

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Solution

The fourth proportional to 5,009.68, 7,515.20 and 2,087.30 is: 3,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.68 : 7,515.20 = 2,087.30 : x
  2. Step 2: Convert to fraction form
    5,009.68/7,515.20 = 2,087.30/x
  3. Step 3: Cross multiply
    5,009.68x = 7,515.20 × 2,087.30
  4. Step 4: Simplify right side
    5,009.68x = 15,686,446.95
  5. Step 5: Solve for x
    x = 15,686,446.95/5,009.68
  6. Step 6: Final answer
    x = 3,131.23

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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.