Home / 1,286.02-1,929.75-464.98

Finding the Fourth Proportional to 1,286.02, 1,929.75 and 464.98

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Solution

The fourth proportional to 1,286.02, 1,929.75 and 464.98 is: 697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.02 : 1,929.75 = 464.98 : x
  2. Step 2: Convert to fraction form
    1,286.02/1,929.75 = 464.98/x
  3. Step 3: Cross multiply
    1,286.02x = 1,929.75 × 464.98
  4. Step 4: Simplify right side
    1,286.02x = 897,295.16
  5. Step 5: Solve for x
    x = 897,295.16/1,286.02
  6. Step 6: Final answer
    x = 697.73

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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.