Home / 1,102.20-1,644.02-1,025.66

Finding the Fourth Proportional to 1,102.20, 1,644.02 and 1,025.66

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Solution

The fourth proportional to 1,102.20, 1,644.02 and 1,025.66 is: 1,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.20 : 1,644.02 = 1,025.66 : x
  2. Step 2: Convert to fraction form
    1,102.20/1,644.02 = 1,025.66/x
  3. Step 3: Cross multiply
    1,102.20x = 1,644.02 × 1,025.66
  4. Step 4: Simplify right side
    1,102.20x = 1,686,192.20
  5. Step 5: Solve for x
    x = 1,686,192.20/1,102.20
  6. Step 6: Final answer
    x = 1,529.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.