Home / 1,192.60-1,788.90-326.92

Finding the Fourth Proportional to 1,192.60, 1,788.90 and 326.92

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Solution

The fourth proportional to 1,192.60, 1,788.90 and 326.92 is: 490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.60 : 1,788.90 = 326.92 : x
  2. Step 2: Convert to fraction form
    1,192.60/1,788.90 = 326.92/x
  3. Step 3: Cross multiply
    1,192.60x = 1,788.90 × 326.92
  4. Step 4: Simplify right side
    1,192.60x = 584,827.19
  5. Step 5: Solve for x
    x = 584,827.19/1,192.60
  6. Step 6: Final answer
    x = 490.38

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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.