Home / 2,431.42-3,355.51-1,383.48

Finding the Fourth Proportional to 2,431.42, 3,355.51 and 1,383.48

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Solution

The fourth proportional to 2,431.42, 3,355.51 and 1,383.48 is: 1,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.42 : 3,355.51 = 1,383.48 : x
  2. Step 2: Convert to fraction form
    2,431.42/3,355.51 = 1,383.48/x
  3. Step 3: Cross multiply
    2,431.42x = 3,355.51 × 1,383.48
  4. Step 4: Simplify right side
    2,431.42x = 4,642,280.97
  5. Step 5: Solve for x
    x = 4,642,280.97/2,431.42
  6. Step 6: Final answer
    x = 1,909.29

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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.