Home / 4,665.40-6,998.00-1,378.42

Finding the Fourth Proportional to 4,665.40, 6,998.00 and 1,378.42

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Solution

The fourth proportional to 4,665.40, 6,998.00 and 1,378.42 is: 2,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.40 : 6,998.00 = 1,378.42 : x
  2. Step 2: Convert to fraction form
    4,665.40/6,998.00 = 1,378.42/x
  3. Step 3: Cross multiply
    4,665.40x = 6,998.00 × 1,378.42
  4. Step 4: Simplify right side
    4,665.40x = 9,646,158.77
  5. Step 5: Solve for x
    x = 9,646,158.77/4,665.40
  6. Step 6: Final answer
    x = 2,067.60

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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.