Home / 1,929.30-2,887.11-1,199.22

Finding the Fourth Proportional to 1,929.30, 2,887.11 and 1,199.22

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Solution

The fourth proportional to 1,929.30, 2,887.11 and 1,199.22 is: 1,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.30 : 2,887.11 = 1,199.22 : x
  2. Step 2: Convert to fraction form
    1,929.30/2,887.11 = 1,199.22/x
  3. Step 3: Cross multiply
    1,929.30x = 2,887.11 × 1,199.22
  4. Step 4: Simplify right side
    1,929.30x = 3,462,280.05
  5. Step 5: Solve for x
    x = 3,462,280.05/1,929.30
  6. Step 6: Final answer
    x = 1,794.58

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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.