Home / 3,192.08-4,788.30-1,111.20

Finding the Fourth Proportional to 3,192.08, 4,788.30 and 1,111.20

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Solution

The fourth proportional to 3,192.08, 4,788.30 and 1,111.20 is: 1,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.08 : 4,788.30 = 1,111.20 : x
  2. Step 2: Convert to fraction form
    3,192.08/4,788.30 = 1,111.20/x
  3. Step 3: Cross multiply
    3,192.08x = 4,788.30 × 1,111.20
  4. Step 4: Simplify right side
    3,192.08x = 5,320,758.96
  5. Step 5: Solve for x
    x = 5,320,758.96/3,192.08
  6. Step 6: Final answer
    x = 1,666.86

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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.