Home / 1,935.10-2,906.76-1,643.20

Finding the Fourth Proportional to 1,935.10, 2,906.76 and 1,643.20

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Solution

The fourth proportional to 1,935.10, 2,906.76 and 1,643.20 is: 2,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.10 : 2,906.76 = 1,643.20 : x
  2. Step 2: Convert to fraction form
    1,935.10/2,906.76 = 1,643.20/x
  3. Step 3: Cross multiply
    1,935.10x = 2,906.76 × 1,643.20
  4. Step 4: Simplify right side
    1,935.10x = 4,776,388.03
  5. Step 5: Solve for x
    x = 4,776,388.03/1,935.10
  6. Step 6: Final answer
    x = 2,468.29

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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.