Home / 2,784.47-3,841.45-1,665.45

Finding the Fourth Proportional to 2,784.47, 3,841.45 and 1,665.45

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Solution

The fourth proportional to 2,784.47, 3,841.45 and 1,665.45 is: 2,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.47 : 3,841.45 = 1,665.45 : x
  2. Step 2: Convert to fraction form
    2,784.47/3,841.45 = 1,665.45/x
  3. Step 3: Cross multiply
    2,784.47x = 3,841.45 × 1,665.45
  4. Step 4: Simplify right side
    2,784.47x = 6,397,738.74
  5. Step 5: Solve for x
    x = 6,397,738.74/2,784.47
  6. Step 6: Final answer
    x = 2,297.65

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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.