Home / 1,193.19-1,646.60-669.23

Finding the Fourth Proportional to 1,193.19, 1,646.60 and 669.23

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Solution

The fourth proportional to 1,193.19, 1,646.60 and 669.23 is: 923.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.19 : 1,646.60 = 669.23 : x
  2. Step 2: Convert to fraction form
    1,193.19/1,646.60 = 669.23/x
  3. Step 3: Cross multiply
    1,193.19x = 1,646.60 × 669.23
  4. Step 4: Simplify right side
    1,193.19x = 1,101,954.12
  5. Step 5: Solve for x
    x = 1,101,954.12/1,193.19
  6. Step 6: Final answer
    x = 923.54

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Half scale
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Double scale
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1.5x scale

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.