Home / 1,096.08-1,520.40-1,057.20

Finding the Fourth Proportional to 1,096.08, 1,520.40 and 1,057.20

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Solution

The fourth proportional to 1,096.08, 1,520.40 and 1,057.20 is: 1,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.08 : 1,520.40 = 1,057.20 : x
  2. Step 2: Convert to fraction form
    1,096.08/1,520.40 = 1,057.20/x
  3. Step 3: Cross multiply
    1,096.08x = 1,520.40 × 1,057.20
  4. Step 4: Simplify right side
    1,096.08x = 1,607,366.88
  5. Step 5: Solve for x
    x = 1,607,366.88/1,096.08
  6. Step 6: Final answer
    x = 1,466.47

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.