Home / 1,904.64-2,859.42-1,291.08

Finding the Fourth Proportional to 1,904.64, 2,859.42 and 1,291.08

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Solution

The fourth proportional to 1,904.64, 2,859.42 and 1,291.08 is: 1,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.64 : 2,859.42 = 1,291.08 : x
  2. Step 2: Convert to fraction form
    1,904.64/2,859.42 = 1,291.08/x
  3. Step 3: Cross multiply
    1,904.64x = 2,859.42 × 1,291.08
  4. Step 4: Simplify right side
    1,904.64x = 3,691,739.97
  5. Step 5: Solve for x
    x = 3,691,739.97/1,904.64
  6. Step 6: Final answer
    x = 1,938.29

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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.