Home / 1,395.24-1,919.84-1,362.44

Finding the Fourth Proportional to 1,395.24, 1,919.84 and 1,362.44

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Solution

The fourth proportional to 1,395.24, 1,919.84 and 1,362.44 is: 1,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.24 : 1,919.84 = 1,362.44 : x
  2. Step 2: Convert to fraction form
    1,395.24/1,919.84 = 1,362.44/x
  3. Step 3: Cross multiply
    1,395.24x = 1,919.84 × 1,362.44
  4. Step 4: Simplify right side
    1,395.24x = 2,615,666.81
  5. Step 5: Solve for x
    x = 2,615,666.81/1,395.24
  6. Step 6: Final answer
    x = 1,874.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.