Home / 1,410.90-2,115.99-1,192.92

Finding the Fourth Proportional to 1,410.90, 2,115.99 and 1,192.92

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Solution

The fourth proportional to 1,410.90, 2,115.99 and 1,192.92 is: 1,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.90 : 2,115.99 = 1,192.92 : x
  2. Step 2: Convert to fraction form
    1,410.90/2,115.99 = 1,192.92/x
  3. Step 3: Cross multiply
    1,410.90x = 2,115.99 × 1,192.92
  4. Step 4: Simplify right side
    1,410.90x = 2,524,206.79
  5. Step 5: Solve for x
    x = 2,524,206.79/1,410.90
  6. Step 6: Final answer
    x = 1,789.08

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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.