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Finding the Fourth Proportional to 1,107.93, 1,527.48 and 758.01

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Solution

The fourth proportional to 1,107.93, 1,527.48 and 758.01 is: 1,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.93 : 1,527.48 = 758.01 : x
  2. Step 2: Convert to fraction form
    1,107.93/1,527.48 = 758.01/x
  3. Step 3: Cross multiply
    1,107.93x = 1,527.48 × 758.01
  4. Step 4: Simplify right side
    1,107.93x = 1,157,845.11
  5. Step 5: Solve for x
    x = 1,157,845.11/1,107.93
  6. Step 6: Final answer
    x = 1,045.05

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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.