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Finding the Fourth Proportional to 2,370.86, 3,272.10 and 1,709.90

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Solution

The fourth proportional to 2,370.86, 3,272.10 and 1,709.90 is: 2,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.86 : 3,272.10 = 1,709.90 : x
  2. Step 2: Convert to fraction form
    2,370.86/3,272.10 = 1,709.90/x
  3. Step 3: Cross multiply
    2,370.86x = 3,272.10 × 1,709.90
  4. Step 4: Simplify right side
    2,370.86x = 5,594,963.79
  5. Step 5: Solve for x
    x = 5,594,963.79/2,370.86
  6. Step 6: Final answer
    x = 2,359.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.