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Finding the Fourth Proportional to 2,612.86, 3,604.79 and 1,717.08

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Solution

The fourth proportional to 2,612.86, 3,604.79 and 1,717.08 is: 2,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.86 : 3,604.79 = 1,717.08 : x
  2. Step 2: Convert to fraction form
    2,612.86/3,604.79 = 1,717.08/x
  3. Step 3: Cross multiply
    2,612.86x = 3,604.79 × 1,717.08
  4. Step 4: Simplify right side
    2,612.86x = 6,189,714.21
  5. Step 5: Solve for x
    x = 6,189,714.21/2,612.86
  6. Step 6: Final answer
    x = 2,368.94

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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.