Home / 1,490.24-2,235.38-516.36

Finding the Fourth Proportional to 1,490.24, 2,235.38 and 516.36

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Solution

The fourth proportional to 1,490.24, 2,235.38 and 516.36 is: 774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.24 : 2,235.38 = 516.36 : x
  2. Step 2: Convert to fraction form
    1,490.24/2,235.38 = 516.36/x
  3. Step 3: Cross multiply
    1,490.24x = 2,235.38 × 516.36
  4. Step 4: Simplify right side
    1,490.24x = 1,154,258.24
  5. Step 5: Solve for x
    x = 1,154,258.24/1,490.24
  6. Step 6: Final answer
    x = 774.55

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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.