Home / 1,442.39-2,161.71-1,094.70

Finding the Fourth Proportional to 1,442.39, 2,161.71 and 1,094.70

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Solution

The fourth proportional to 1,442.39, 2,161.71 and 1,094.70 is: 1,640.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.39 : 2,161.71 = 1,094.70 : x
  2. Step 2: Convert to fraction form
    1,442.39/2,161.71 = 1,094.70/x
  3. Step 3: Cross multiply
    1,442.39x = 2,161.71 × 1,094.70
  4. Step 4: Simplify right side
    1,442.39x = 2,366,423.94
  5. Step 5: Solve for x
    x = 2,366,423.94/1,442.39
  6. Step 6: Final answer
    x = 1,640.63

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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.