Home / 2,921.16-4,375.49-1,820.10

Finding the Fourth Proportional to 2,921.16, 4,375.49 and 1,820.10

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Solution

The fourth proportional to 2,921.16, 4,375.49 and 1,820.10 is: 2,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.16 : 4,375.49 = 1,820.10 : x
  2. Step 2: Convert to fraction form
    2,921.16/4,375.49 = 1,820.10/x
  3. Step 3: Cross multiply
    2,921.16x = 4,375.49 × 1,820.10
  4. Step 4: Simplify right side
    2,921.16x = 7,963,820.25
  5. Step 5: Solve for x
    x = 7,963,820.25/2,921.16
  6. Step 6: Final answer
    x = 2,726.25

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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.