Home / 1,368.12-1,889.82-1,193.16

Finding the Fourth Proportional to 1,368.12, 1,889.82 and 1,193.16

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Solution

The fourth proportional to 1,368.12, 1,889.82 and 1,193.16 is: 1,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.12 : 1,889.82 = 1,193.16 : x
  2. Step 2: Convert to fraction form
    1,368.12/1,889.82 = 1,193.16/x
  3. Step 3: Cross multiply
    1,368.12x = 1,889.82 × 1,193.16
  4. Step 4: Simplify right side
    1,368.12x = 2,254,857.63
  5. Step 5: Solve for x
    x = 2,254,857.63/1,368.12
  6. Step 6: Final answer
    x = 1,648.14

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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.