Home / 1,518.50-2,277.80-1,189.13

Finding the Fourth Proportional to 1,518.50, 2,277.80 and 1,189.13

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Solution

The fourth proportional to 1,518.50, 2,277.80 and 1,189.13 is: 1,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.50 : 2,277.80 = 1,189.13 : x
  2. Step 2: Convert to fraction form
    1,518.50/2,277.80 = 1,189.13/x
  3. Step 3: Cross multiply
    1,518.50x = 2,277.80 × 1,189.13
  4. Step 4: Simplify right side
    1,518.50x = 2,708,600.31
  5. Step 5: Solve for x
    x = 2,708,600.31/1,518.50
  6. Step 6: Final answer
    x = 1,783.73

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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.