Home / 1,194.12-1,646.24-1,177.72

Finding the Fourth Proportional to 1,194.12, 1,646.24 and 1,177.72

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Solution

The fourth proportional to 1,194.12, 1,646.24 and 1,177.72 is: 1,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.12 : 1,646.24 = 1,177.72 : x
  2. Step 2: Convert to fraction form
    1,194.12/1,646.24 = 1,177.72/x
  3. Step 3: Cross multiply
    1,194.12x = 1,646.24 × 1,177.72
  4. Step 4: Simplify right side
    1,194.12x = 1,938,809.77
  5. Step 5: Solve for x
    x = 1,938,809.77/1,194.12
  6. Step 6: Final answer
    x = 1,623.63

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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.