Home / 919.03-1,377.73-341.50

Finding the Fourth Proportional to 919.03, 1,377.73 and 341.50

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Solution

The fourth proportional to 919.03, 1,377.73 and 341.50 is: 511.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    919.03 : 1,377.73 = 341.50 : x
  2. Step 2: Convert to fraction form
    919.03/1,377.73 = 341.50/x
  3. Step 3: Cross multiply
    919.03x = 1,377.73 × 341.50
  4. Step 4: Simplify right side
    919.03x = 470,494.80
  5. Step 5: Solve for x
    x = 470,494.80/919.03
  6. Step 6: Final answer
    x = 511.95

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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.