Home / 1,083.20-1,494.80-617.45

Finding the Fourth Proportional to 1,083.20, 1,494.80 and 617.45

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Solution

The fourth proportional to 1,083.20, 1,494.80 and 617.45 is: 852.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.20 : 1,494.80 = 617.45 : x
  2. Step 2: Convert to fraction form
    1,083.20/1,494.80 = 617.45/x
  3. Step 3: Cross multiply
    1,083.20x = 1,494.80 × 617.45
  4. Step 4: Simplify right side
    1,083.20x = 922,953.70
  5. Step 5: Solve for x
    x = 922,953.70/1,083.20
  6. Step 6: Final answer
    x = 852.07

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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.