Home / 1,141.21-1,713.44-1,089.01

Finding the Fourth Proportional to 1,141.21, 1,713.44 and 1,089.01

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Solution

The fourth proportional to 1,141.21, 1,713.44 and 1,089.01 is: 1,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.21 : 1,713.44 = 1,089.01 : x
  2. Step 2: Convert to fraction form
    1,141.21/1,713.44 = 1,089.01/x
  3. Step 3: Cross multiply
    1,141.21x = 1,713.44 × 1,089.01
  4. Step 4: Simplify right side
    1,141.21x = 1,865,953.29
  5. Step 5: Solve for x
    x = 1,865,953.29/1,141.21
  6. Step 6: Final answer
    x = 1,635.07

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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.