Home / 1,677.17-2,309.81-1,640.86

Finding the Fourth Proportional to 1,677.17, 2,309.81 and 1,640.86

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Solution

The fourth proportional to 1,677.17, 2,309.81 and 1,640.86 is: 2,259.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.17 : 2,309.81 = 1,640.86 : x
  2. Step 2: Convert to fraction form
    1,677.17/2,309.81 = 1,640.86/x
  3. Step 3: Cross multiply
    1,677.17x = 2,309.81 × 1,640.86
  4. Step 4: Simplify right side
    1,677.17x = 3,790,068.93
  5. Step 5: Solve for x
    x = 3,790,068.93/1,677.17
  6. Step 6: Final answer
    x = 2,259.79

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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.