Home / 2,921.77-4,376.12-1,359.43

Finding the Fourth Proportional to 2,921.77, 4,376.12 and 1,359.43

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Solution

The fourth proportional to 2,921.77, 4,376.12 and 1,359.43 is: 2,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.77 : 4,376.12 = 1,359.43 : x
  2. Step 2: Convert to fraction form
    2,921.77/4,376.12 = 1,359.43/x
  3. Step 3: Cross multiply
    2,921.77x = 4,376.12 × 1,359.43
  4. Step 4: Simplify right side
    2,921.77x = 5,949,023.38
  5. Step 5: Solve for x
    x = 5,949,023.38/2,921.77
  6. Step 6: Final answer
    x = 2,036.10

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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.