Home / 1,192.17-1,789.58-900.57

Finding the Fourth Proportional to 1,192.17, 1,789.58 and 900.57

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Solution

The fourth proportional to 1,192.17, 1,789.58 and 900.57 is: 1,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.17 : 1,789.58 = 900.57 : x
  2. Step 2: Convert to fraction form
    1,192.17/1,789.58 = 900.57/x
  3. Step 3: Cross multiply
    1,192.17x = 1,789.58 × 900.57
  4. Step 4: Simplify right side
    1,192.17x = 1,611,642.06
  5. Step 5: Solve for x
    x = 1,611,642.06/1,192.17
  6. Step 6: Final answer
    x = 1,351.86

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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.