Home / 1,395.41-1,924.38-1,079.66

Finding the Fourth Proportional to 1,395.41, 1,924.38 and 1,079.66

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Solution

The fourth proportional to 1,395.41, 1,924.38 and 1,079.66 is: 1,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.41 : 1,924.38 = 1,079.66 : x
  2. Step 2: Convert to fraction form
    1,395.41/1,924.38 = 1,079.66/x
  3. Step 3: Cross multiply
    1,395.41x = 1,924.38 × 1,079.66
  4. Step 4: Simplify right side
    1,395.41x = 2,077,680.92
  5. Step 5: Solve for x
    x = 2,077,680.92/1,395.41
  6. Step 6: Final answer
    x = 1,488.94

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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.