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Finding the Fourth Proportional to 2,289.86, 3,434.04 and 750.50

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Solution

The fourth proportional to 2,289.86, 3,434.04 and 750.50 is: 1,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.86 : 3,434.04 = 750.50 : x
  2. Step 2: Convert to fraction form
    2,289.86/3,434.04 = 750.50/x
  3. Step 3: Cross multiply
    2,289.86x = 3,434.04 × 750.50
  4. Step 4: Simplify right side
    2,289.86x = 2,577,247.02
  5. Step 5: Solve for x
    x = 2,577,247.02/2,289.86
  6. Step 6: Final answer
    x = 1,125.50

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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.