Home / 1,119.24-1,544.55-621.93

Finding the Fourth Proportional to 1,119.24, 1,544.55 and 621.93

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Solution

The fourth proportional to 1,119.24, 1,544.55 and 621.93 is: 858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.24 : 1,544.55 = 621.93 : x
  2. Step 2: Convert to fraction form
    1,119.24/1,544.55 = 621.93/x
  3. Step 3: Cross multiply
    1,119.24x = 1,544.55 × 621.93
  4. Step 4: Simplify right side
    1,119.24x = 960,601.98
  5. Step 5: Solve for x
    x = 960,601.98/1,119.24
  6. Step 6: Final answer
    x = 858.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.