Home / 2,740.50-3,781.62-1,621.22

Finding the Fourth Proportional to 2,740.50, 3,781.62 and 1,621.22

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Solution

The fourth proportional to 2,740.50, 3,781.62 and 1,621.22 is: 2,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.50 : 3,781.62 = 1,621.22 : x
  2. Step 2: Convert to fraction form
    2,740.50/3,781.62 = 1,621.22/x
  3. Step 3: Cross multiply
    2,740.50x = 3,781.62 × 1,621.22
  4. Step 4: Simplify right side
    2,740.50x = 6,130,841.35
  5. Step 5: Solve for x
    x = 6,130,841.35/2,740.50
  6. Step 6: Final answer
    x = 2,237.12

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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.