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Finding the Fourth Proportional to 1,192.12, 1,787.97 and 370.37

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Solution

The fourth proportional to 1,192.12, 1,787.97 and 370.37 is: 555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.12 : 1,787.97 = 370.37 : x
  2. Step 2: Convert to fraction form
    1,192.12/1,787.97 = 370.37/x
  3. Step 3: Cross multiply
    1,192.12x = 1,787.97 × 370.37
  4. Step 4: Simplify right side
    1,192.12x = 662,216.31
  5. Step 5: Solve for x
    x = 662,216.31/1,192.12
  6. Step 6: Final answer
    x = 555.50

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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.