Home / 1,358.37-1,869.71-1,216.17

Finding the Fourth Proportional to 1,358.37, 1,869.71 and 1,216.17

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Solution

The fourth proportional to 1,358.37, 1,869.71 and 1,216.17 is: 1,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.37 : 1,869.71 = 1,216.17 : x
  2. Step 2: Convert to fraction form
    1,358.37/1,869.71 = 1,216.17/x
  3. Step 3: Cross multiply
    1,358.37x = 1,869.71 × 1,216.17
  4. Step 4: Simplify right side
    1,358.37x = 2,273,879.13
  5. Step 5: Solve for x
    x = 2,273,879.13/1,358.37
  6. Step 6: Final answer
    x = 1,673.98

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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.