Home / 1,186.64-1,638.60-1,082.96

Finding the Fourth Proportional to 1,186.64, 1,638.60 and 1,082.96

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Solution

The fourth proportional to 1,186.64, 1,638.60 and 1,082.96 is: 1,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.64 : 1,638.60 = 1,082.96 : x
  2. Step 2: Convert to fraction form
    1,186.64/1,638.60 = 1,082.96/x
  3. Step 3: Cross multiply
    1,186.64x = 1,638.60 × 1,082.96
  4. Step 4: Simplify right side
    1,186.64x = 1,774,538.26
  5. Step 5: Solve for x
    x = 1,774,538.26/1,186.64
  6. Step 6: Final answer
    x = 1,495.43

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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.