Home / 5,009.99-7,515.67-2,087.61

Finding the Fourth Proportional to 5,009.99, 7,515.67 and 2,087.61

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Solution

The fourth proportional to 5,009.99, 7,515.67 and 2,087.61 is: 3,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.99 : 7,515.67 = 2,087.61 : x
  2. Step 2: Convert to fraction form
    5,009.99/7,515.67 = 2,087.61/x
  3. Step 3: Cross multiply
    5,009.99x = 7,515.67 × 2,087.61
  4. Step 4: Simplify right side
    5,009.99x = 15,689,787.85
  5. Step 5: Solve for x
    x = 15,689,787.85/5,009.99
  6. Step 6: Final answer
    x = 3,131.70

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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.