Home / 1,687.37-2,529.72-1,132.63

Finding the Fourth Proportional to 1,687.37, 2,529.72 and 1,132.63

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Solution

The fourth proportional to 1,687.37, 2,529.72 and 1,132.63 is: 1,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.37 : 2,529.72 = 1,132.63 : x
  2. Step 2: Convert to fraction form
    1,687.37/2,529.72 = 1,132.63/x
  3. Step 3: Cross multiply
    1,687.37x = 2,529.72 × 1,132.63
  4. Step 4: Simplify right side
    1,687.37x = 2,865,230.44
  5. Step 5: Solve for x
    x = 2,865,230.44/1,687.37
  6. Step 6: Final answer
    x = 1,698.05

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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.