Home / 3,891.40-5,837.10-1,582.36

Finding the Fourth Proportional to 3,891.40, 5,837.10 and 1,582.36

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Solution

The fourth proportional to 3,891.40, 5,837.10 and 1,582.36 is: 2,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.40 : 5,837.10 = 1,582.36 : x
  2. Step 2: Convert to fraction form
    3,891.40/5,837.10 = 1,582.36/x
  3. Step 3: Cross multiply
    3,891.40x = 5,837.10 × 1,582.36
  4. Step 4: Simplify right side
    3,891.40x = 9,236,393.56
  5. Step 5: Solve for x
    x = 9,236,393.56/3,891.40
  6. Step 6: Final answer
    x = 2,373.54

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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.