Home / 1,192.10-1,788.15-326.41

Finding the Fourth Proportional to 1,192.10, 1,788.15 and 326.41

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Solution

The fourth proportional to 1,192.10, 1,788.15 and 326.41 is: 489.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.10 : 1,788.15 = 326.41 : x
  2. Step 2: Convert to fraction form
    1,192.10/1,788.15 = 326.41/x
  3. Step 3: Cross multiply
    1,192.10x = 1,788.15 × 326.41
  4. Step 4: Simplify right side
    1,192.10x = 583,675.02
  5. Step 5: Solve for x
    x = 583,675.02/1,192.10
  6. Step 6: Final answer
    x = 489.62

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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.