Home / 4,242.36-6,358.68-1,929

Finding the Fourth Proportional to 4,242.36, 6,358.68 and 1,929

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Solution

The fourth proportional to 4,242.36, 6,358.68 and 1,929 is: 2,891.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.36 : 6,358.68 = 1,929 : x
  2. Step 2: Convert to fraction form
    4,242.36/6,358.68 = 1,929/x
  3. Step 3: Cross multiply
    4,242.36x = 6,358.68 × 1,929
  4. Step 4: Simplify right side
    4,242.36x = 12,265,893.72
  5. Step 5: Solve for x
    x = 12,265,893.72/4,242.36
  6. Step 6: Final answer
    x = 2,891.29

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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.