Home / 1,190.18-1,785.73-368.74

Finding the Fourth Proportional to 1,190.18, 1,785.73 and 368.74

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Solution

The fourth proportional to 1,190.18, 1,785.73 and 368.74 is: 553.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.18 : 1,785.73 = 368.74 : x
  2. Step 2: Convert to fraction form
    1,190.18/1,785.73 = 368.74/x
  3. Step 3: Cross multiply
    1,190.18x = 1,785.73 × 368.74
  4. Step 4: Simplify right side
    1,190.18x = 658,470.08
  5. Step 5: Solve for x
    x = 658,470.08/1,190.18
  6. Step 6: Final answer
    x = 553.25

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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.