Home / 1,527.28-2,107.80-897.92

Finding the Fourth Proportional to 1,527.28, 2,107.80 and 897.92

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Solution

The fourth proportional to 1,527.28, 2,107.80 and 897.92 is: 1,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.28 : 2,107.80 = 897.92 : x
  2. Step 2: Convert to fraction form
    1,527.28/2,107.80 = 897.92/x
  3. Step 3: Cross multiply
    1,527.28x = 2,107.80 × 897.92
  4. Step 4: Simplify right side
    1,527.28x = 1,892,635.78
  5. Step 5: Solve for x
    x = 1,892,635.78/1,527.28
  6. Step 6: Final answer
    x = 1,239.22

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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.