Home / 1,935.36-2,899.44-1,285.20

Finding the Fourth Proportional to 1,935.36, 2,899.44 and 1,285.20

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Solution

The fourth proportional to 1,935.36, 2,899.44 and 1,285.20 is: 1,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.36 : 2,899.44 = 1,285.20 : x
  2. Step 2: Convert to fraction form
    1,935.36/2,899.44 = 1,285.20/x
  3. Step 3: Cross multiply
    1,935.36x = 2,899.44 × 1,285.20
  4. Step 4: Simplify right side
    1,935.36x = 3,726,360.29
  5. Step 5: Solve for x
    x = 3,726,360.29/1,935.36
  6. Step 6: Final answer
    x = 1,925.41

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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.