Home / 1,146.63-1,719.66-453.09

Finding the Fourth Proportional to 1,146.63, 1,719.66 and 453.09

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Solution

The fourth proportional to 1,146.63, 1,719.66 and 453.09 is: 679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.63 : 1,719.66 = 453.09 : x
  2. Step 2: Convert to fraction form
    1,146.63/1,719.66 = 453.09/x
  3. Step 3: Cross multiply
    1,146.63x = 1,719.66 × 453.09
  4. Step 4: Simplify right side
    1,146.63x = 779,160.75
  5. Step 5: Solve for x
    x = 779,160.75/1,146.63
  6. Step 6: Final answer
    x = 679.52

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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.