Home / 4,889.30-7,332.08-2,115.74

Finding the Fourth Proportional to 4,889.30, 7,332.08 and 2,115.74

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Solution

The fourth proportional to 4,889.30, 7,332.08 and 2,115.74 is: 3,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.30 : 7,332.08 = 2,115.74 : x
  2. Step 2: Convert to fraction form
    4,889.30/7,332.08 = 2,115.74/x
  3. Step 3: Cross multiply
    4,889.30x = 7,332.08 × 2,115.74
  4. Step 4: Simplify right side
    4,889.30x = 15,512,782.69
  5. Step 5: Solve for x
    x = 15,512,782.69/4,889.30
  6. Step 6: Final answer
    x = 3,172.81

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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.