Home / 4,781.65-7,175.19-1,859.59

Finding the Fourth Proportional to 4,781.65, 7,175.19 and 1,859.59

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Solution

The fourth proportional to 4,781.65, 7,175.19 and 1,859.59 is: 2,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.65 : 7,175.19 = 1,859.59 : x
  2. Step 2: Convert to fraction form
    4,781.65/7,175.19 = 1,859.59/x
  3. Step 3: Cross multiply
    4,781.65x = 7,175.19 × 1,859.59
  4. Step 4: Simplify right side
    4,781.65x = 13,342,911.57
  5. Step 5: Solve for x
    x = 13,342,911.57/4,781.65
  6. Step 6: Final answer
    x = 2,790.44

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1.5x scale

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.