Home / 1,516.19-2,274.06-420.44

Finding the Fourth Proportional to 1,516.19, 2,274.06 and 420.44

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Solution

The fourth proportional to 1,516.19, 2,274.06 and 420.44 is: 630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.19 : 2,274.06 = 420.44 : x
  2. Step 2: Convert to fraction form
    1,516.19/2,274.06 = 420.44/x
  3. Step 3: Cross multiply
    1,516.19x = 2,274.06 × 420.44
  4. Step 4: Simplify right side
    1,516.19x = 956,105.79
  5. Step 5: Solve for x
    x = 956,105.79/1,516.19
  6. Step 6: Final answer
    x = 630.60

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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.