Home / 1,089.41-1,637.36-1,008.95

Finding the Fourth Proportional to 1,089.41, 1,637.36 and 1,008.95

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Solution

The fourth proportional to 1,089.41, 1,637.36 and 1,008.95 is: 1,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.41 : 1,637.36 = 1,008.95 : x
  2. Step 2: Convert to fraction form
    1,089.41/1,637.36 = 1,008.95/x
  3. Step 3: Cross multiply
    1,089.41x = 1,637.36 × 1,008.95
  4. Step 4: Simplify right side
    1,089.41x = 1,652,009.33
  5. Step 5: Solve for x
    x = 1,652,009.33/1,089.41
  6. Step 6: Final answer
    x = 1,516.43

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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.