Home / 5,161.32-7,741.98-1,698.57

Finding the Fourth Proportional to 5,161.32, 7,741.98 and 1,698.57

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Solution

The fourth proportional to 5,161.32, 7,741.98 and 1,698.57 is: 2,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.32 : 7,741.98 = 1,698.57 : x
  2. Step 2: Convert to fraction form
    5,161.32/7,741.98 = 1,698.57/x
  3. Step 3: Cross multiply
    5,161.32x = 7,741.98 × 1,698.57
  4. Step 4: Simplify right side
    5,161.32x = 13,150,294.97
  5. Step 5: Solve for x
    x = 13,150,294.97/5,161.32
  6. Step 6: Final answer
    x = 2,547.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.