Home / 1,188.14-1,782.35-366.18

Finding the Fourth Proportional to 1,188.14, 1,782.35 and 366.18

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Solution

The fourth proportional to 1,188.14, 1,782.35 and 366.18 is: 549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.14 : 1,782.35 = 366.18 : x
  2. Step 2: Convert to fraction form
    1,188.14/1,782.35 = 366.18/x
  3. Step 3: Cross multiply
    1,188.14x = 1,782.35 × 366.18
  4. Step 4: Simplify right side
    1,188.14x = 652,659.09
  5. Step 5: Solve for x
    x = 652,659.09/1,188.14
  6. Step 6: Final answer
    x = 549.31

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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.