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Finding the Fourth Proportional to 2,361.56, 3,258.96 and 1,313.63

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Solution

The fourth proportional to 2,361.56, 3,258.96 and 1,313.63 is: 1,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.56 : 3,258.96 = 1,313.63 : x
  2. Step 2: Convert to fraction form
    2,361.56/3,258.96 = 1,313.63/x
  3. Step 3: Cross multiply
    2,361.56x = 3,258.96 × 1,313.63
  4. Step 4: Simplify right side
    2,361.56x = 4,281,046.40
  5. Step 5: Solve for x
    x = 4,281,046.40/2,361.56
  6. Step 6: Final answer
    x = 1,812.80

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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.