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Finding the Fourth Proportional to 1,923.36, 2,655.12 and 1,260.24

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Solution

The fourth proportional to 1,923.36, 2,655.12 and 1,260.24 is: 1,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.36 : 2,655.12 = 1,260.24 : x
  2. Step 2: Convert to fraction form
    1,923.36/2,655.12 = 1,260.24/x
  3. Step 3: Cross multiply
    1,923.36x = 2,655.12 × 1,260.24
  4. Step 4: Simplify right side
    1,923.36x = 3,346,088.43
  5. Step 5: Solve for x
    x = 3,346,088.43/1,923.36
  6. Step 6: Final answer
    x = 1,739.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.