Home / 3,919.51-5,877.56-1,146.12

Finding the Fourth Proportional to 3,919.51, 5,877.56 and 1,146.12

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Solution

The fourth proportional to 3,919.51, 5,877.56 and 1,146.12 is: 1,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.51 : 5,877.56 = 1,146.12 : x
  2. Step 2: Convert to fraction form
    3,919.51/5,877.56 = 1,146.12/x
  3. Step 3: Cross multiply
    3,919.51x = 5,877.56 × 1,146.12
  4. Step 4: Simplify right side
    3,919.51x = 6,736,419.48
  5. Step 5: Solve for x
    x = 6,736,419.48/3,919.51
  6. Step 6: Final answer
    x = 1,718.69

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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.