Home / 1,091.16-1,638.32-1,063.53

Finding the Fourth Proportional to 1,091.16, 1,638.32 and 1,063.53

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Solution

The fourth proportional to 1,091.16, 1,638.32 and 1,063.53 is: 1,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.16 : 1,638.32 = 1,063.53 : x
  2. Step 2: Convert to fraction form
    1,091.16/1,638.32 = 1,063.53/x
  3. Step 3: Cross multiply
    1,091.16x = 1,638.32 × 1,063.53
  4. Step 4: Simplify right side
    1,091.16x = 1,742,397.15
  5. Step 5: Solve for x
    x = 1,742,397.15/1,091.16
  6. Step 6: Final answer
    x = 1,596.83

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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.