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Finding the Fourth Proportional to 1,527.53, 2,107.95 and 897.93

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Solution

The fourth proportional to 1,527.53, 2,107.95 and 897.93 is: 1,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.53 : 2,107.95 = 897.93 : x
  2. Step 2: Convert to fraction form
    1,527.53/2,107.95 = 897.93/x
  3. Step 3: Cross multiply
    1,527.53x = 2,107.95 × 897.93
  4. Step 4: Simplify right side
    1,527.53x = 1,892,791.54
  5. Step 5: Solve for x
    x = 1,892,791.54/1,527.53
  6. Step 6: Final answer
    x = 1,239.12

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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.