Home / 1,247.30-1,880.73-1,093.70

Finding the Fourth Proportional to 1,247.30, 1,880.73 and 1,093.70

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Solution

The fourth proportional to 1,247.30, 1,880.73 and 1,093.70 is: 1,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.30 : 1,880.73 = 1,093.70 : x
  2. Step 2: Convert to fraction form
    1,247.30/1,880.73 = 1,093.70/x
  3. Step 3: Cross multiply
    1,247.30x = 1,880.73 × 1,093.70
  4. Step 4: Simplify right side
    1,247.30x = 2,056,954.40
  5. Step 5: Solve for x
    x = 2,056,954.40/1,247.30
  6. Step 6: Final answer
    x = 1,649.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.