Home / 1,705.86-2,350.08-1,207.44

Finding the Fourth Proportional to 1,705.86, 2,350.08 and 1,207.44

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Solution

The fourth proportional to 1,705.86, 2,350.08 and 1,207.44 is: 1,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.86 : 2,350.08 = 1,207.44 : x
  2. Step 2: Convert to fraction form
    1,705.86/2,350.08 = 1,207.44/x
  3. Step 3: Cross multiply
    1,705.86x = 2,350.08 × 1,207.44
  4. Step 4: Simplify right side
    1,705.86x = 2,837,580.60
  5. Step 5: Solve for x
    x = 2,837,580.60/1,705.86
  6. Step 6: Final answer
    x = 1,663.43

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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.