Home / 1,264.50-1,900.80-1,174.32

Finding the Fourth Proportional to 1,264.50, 1,900.80 and 1,174.32

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Solution

The fourth proportional to 1,264.50, 1,900.80 and 1,174.32 is: 1,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.50 : 1,900.80 = 1,174.32 : x
  2. Step 2: Convert to fraction form
    1,264.50/1,900.80 = 1,174.32/x
  3. Step 3: Cross multiply
    1,264.50x = 1,900.80 × 1,174.32
  4. Step 4: Simplify right side
    1,264.50x = 2,232,147.46
  5. Step 5: Solve for x
    x = 2,232,147.46/1,264.50
  6. Step 6: Final answer
    x = 1,765.24

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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.