Home / 1,476.19-2,212.56-1,109.80

Finding the Fourth Proportional to 1,476.19, 2,212.56 and 1,109.80

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Solution

The fourth proportional to 1,476.19, 2,212.56 and 1,109.80 is: 1,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.19 : 2,212.56 = 1,109.80 : x
  2. Step 2: Convert to fraction form
    1,476.19/2,212.56 = 1,109.80/x
  3. Step 3: Cross multiply
    1,476.19x = 2,212.56 × 1,109.80
  4. Step 4: Simplify right side
    1,476.19x = 2,455,499.09
  5. Step 5: Solve for x
    x = 2,455,499.09/1,476.19
  6. Step 6: Final answer
    x = 1,663.40

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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.