Home / 2,431.17-3,355.17-1,383.23

Finding the Fourth Proportional to 2,431.17, 3,355.17 and 1,383.23

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Solution

The fourth proportional to 2,431.17, 3,355.17 and 1,383.23 is: 1,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.17 : 3,355.17 = 1,383.23 : x
  2. Step 2: Convert to fraction form
    2,431.17/3,355.17 = 1,383.23/x
  3. Step 3: Cross multiply
    2,431.17x = 3,355.17 × 1,383.23
  4. Step 4: Simplify right side
    2,431.17x = 4,640,980.19
  5. Step 5: Solve for x
    x = 4,640,980.19/2,431.17
  6. Step 6: Final answer
    x = 1,908.95

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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.