Home / 1,702.86-2,350.53-1,309.38

Finding the Fourth Proportional to 1,702.86, 2,350.53 and 1,309.38

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Solution

The fourth proportional to 1,702.86, 2,350.53 and 1,309.38 is: 1,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.86 : 2,350.53 = 1,309.38 : x
  2. Step 2: Convert to fraction form
    1,702.86/2,350.53 = 1,309.38/x
  3. Step 3: Cross multiply
    1,702.86x = 2,350.53 × 1,309.38
  4. Step 4: Simplify right side
    1,702.86x = 3,077,736.97
  5. Step 5: Solve for x
    x = 3,077,736.97/1,702.86
  6. Step 6: Final answer
    x = 1,807.39

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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.