Home / 5,317.99-7,976.95-1,422.38

Finding the Fourth Proportional to 5,317.99, 7,976.95 and 1,422.38

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Solution

The fourth proportional to 5,317.99, 7,976.95 and 1,422.38 is: 2,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.99 : 7,976.95 = 1,422.38 : x
  2. Step 2: Convert to fraction form
    5,317.99/7,976.95 = 1,422.38/x
  3. Step 3: Cross multiply
    5,317.99x = 7,976.95 × 1,422.38
  4. Step 4: Simplify right side
    5,317.99x = 11,346,254.14
  5. Step 5: Solve for x
    x = 11,346,254.14/5,317.99
  6. Step 6: Final answer
    x = 2,133.56

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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.