Home / 1,516.32-2,272.19-900.32

Finding the Fourth Proportional to 1,516.32, 2,272.19 and 900.32

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Solution

The fourth proportional to 1,516.32, 2,272.19 and 900.32 is: 1,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.32 : 2,272.19 = 900.32 : x
  2. Step 2: Convert to fraction form
    1,516.32/2,272.19 = 900.32/x
  3. Step 3: Cross multiply
    1,516.32x = 2,272.19 × 900.32
  4. Step 4: Simplify right side
    1,516.32x = 2,045,682.24
  5. Step 5: Solve for x
    x = 2,045,682.24/1,516.32
  6. Step 6: Final answer
    x = 1,349.11

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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.