Home / 1,935.57-2,670.11-1,305.30

Finding the Fourth Proportional to 1,935.57, 2,670.11 and 1,305.30

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Solution

The fourth proportional to 1,935.57, 2,670.11 and 1,305.30 is: 1,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.57 : 2,670.11 = 1,305.30 : x
  2. Step 2: Convert to fraction form
    1,935.57/2,670.11 = 1,305.30/x
  3. Step 3: Cross multiply
    1,935.57x = 2,670.11 × 1,305.30
  4. Step 4: Simplify right side
    1,935.57x = 3,485,294.58
  5. Step 5: Solve for x
    x = 3,485,294.58/1,935.57
  6. Step 6: Final answer
    x = 1,800.66

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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.