Home / 1,193.12-1,789.16-412.97

Finding the Fourth Proportional to 1,193.12, 1,789.16 and 412.97

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Solution

The fourth proportional to 1,193.12, 1,789.16 and 412.97 is: 619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.12 : 1,789.16 = 412.97 : x
  2. Step 2: Convert to fraction form
    1,193.12/1,789.16 = 412.97/x
  3. Step 3: Cross multiply
    1,193.12x = 1,789.16 × 412.97
  4. Step 4: Simplify right side
    1,193.12x = 738,871.81
  5. Step 5: Solve for x
    x = 738,871.81/1,193.12
  6. Step 6: Final answer
    x = 619.28

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1.5x scale

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.