Home / 2,431.46-3,355.38-1,383.50

Finding the Fourth Proportional to 2,431.46, 3,355.38 and 1,383.50

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Solution

The fourth proportional to 2,431.46, 3,355.38 and 1,383.50 is: 1,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.46 : 3,355.38 = 1,383.50 : x
  2. Step 2: Convert to fraction form
    2,431.46/3,355.38 = 1,383.50/x
  3. Step 3: Cross multiply
    2,431.46x = 3,355.38 × 1,383.50
  4. Step 4: Simplify right side
    2,431.46x = 4,642,168.23
  5. Step 5: Solve for x
    x = 4,642,168.23/2,431.46
  6. Step 6: Final answer
    x = 1,909.21

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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.