Home / 2,730.30-3,767.47-1,551.21

Finding the Fourth Proportional to 2,730.30, 3,767.47 and 1,551.21

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Solution

The fourth proportional to 2,730.30, 3,767.47 and 1,551.21 is: 2,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.30 : 3,767.47 = 1,551.21 : x
  2. Step 2: Convert to fraction form
    2,730.30/3,767.47 = 1,551.21/x
  3. Step 3: Cross multiply
    2,730.30x = 3,767.47 × 1,551.21
  4. Step 4: Simplify right side
    2,730.30x = 5,844,137.14
  5. Step 5: Solve for x
    x = 5,844,137.14/2,730.30
  6. Step 6: Final answer
    x = 2,140.47

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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.