Home / 1,367.23-2,050.81-380.11

Finding the Fourth Proportional to 1,367.23, 2,050.81 and 380.11

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Solution

The fourth proportional to 1,367.23, 2,050.81 and 380.11 is: 570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.23 : 2,050.81 = 380.11 : x
  2. Step 2: Convert to fraction form
    1,367.23/2,050.81 = 380.11/x
  3. Step 3: Cross multiply
    1,367.23x = 2,050.81 × 380.11
  4. Step 4: Simplify right side
    1,367.23x = 779,533.39
  5. Step 5: Solve for x
    x = 779,533.39/1,367.23
  6. Step 6: Final answer
    x = 570.16

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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.