Home / 2,431.32-3,350.88-1,683.96

Finding the Fourth Proportional to 2,431.32, 3,350.88 and 1,683.96

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Solution

The fourth proportional to 2,431.32, 3,350.88 and 1,683.96 is: 2,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.32 : 3,350.88 = 1,683.96 : x
  2. Step 2: Convert to fraction form
    2,431.32/3,350.88 = 1,683.96/x
  3. Step 3: Cross multiply
    2,431.32x = 3,350.88 × 1,683.96
  4. Step 4: Simplify right side
    2,431.32x = 5,642,747.88
  5. Step 5: Solve for x
    x = 5,642,747.88/2,431.32
  6. Step 6: Final answer
    x = 2,320.86

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1.5x scale

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.