Home / 1,233.19-1,701.80-673.70

Finding the Fourth Proportional to 1,233.19, 1,701.80 and 673.70

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Solution

The fourth proportional to 1,233.19, 1,701.80 and 673.70 is: 929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.19 : 1,701.80 = 673.70 : x
  2. Step 2: Convert to fraction form
    1,233.19/1,701.80 = 673.70/x
  3. Step 3: Cross multiply
    1,233.19x = 1,701.80 × 673.70
  4. Step 4: Simplify right side
    1,233.19x = 1,146,495.20
  5. Step 5: Solve for x
    x = 1,146,495.20/1,233.19
  6. Step 6: Final answer
    x = 929.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.