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Finding the Fourth Proportional to 1,362.64, 2,043.84 and 540.70

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Solution

The fourth proportional to 1,362.64, 2,043.84 and 540.70 is: 811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.64 : 2,043.84 = 540.70 : x
  2. Step 2: Convert to fraction form
    1,362.64/2,043.84 = 540.70/x
  3. Step 3: Cross multiply
    1,362.64x = 2,043.84 × 540.70
  4. Step 4: Simplify right side
    1,362.64x = 1,105,104.29
  5. Step 5: Solve for x
    x = 1,105,104.29/1,362.64
  6. Step 6: Final answer
    x = 811.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.