Home / 1,630.53-2,249.37-931.50

Finding the Fourth Proportional to 1,630.53, 2,249.37 and 931.50

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Solution

The fourth proportional to 1,630.53, 2,249.37 and 931.50 is: 1,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.53 : 2,249.37 = 931.50 : x
  2. Step 2: Convert to fraction form
    1,630.53/2,249.37 = 931.50/x
  3. Step 3: Cross multiply
    1,630.53x = 2,249.37 × 931.50
  4. Step 4: Simplify right side
    1,630.53x = 2,095,288.16
  5. Step 5: Solve for x
    x = 2,095,288.16/1,630.53
  6. Step 6: Final answer
    x = 1,285.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.