Home / 1,113.17-1,669.15-333.07

Finding the Fourth Proportional to 1,113.17, 1,669.15 and 333.07

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Solution

The fourth proportional to 1,113.17, 1,669.15 and 333.07 is: 499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.17 : 1,669.15 = 333.07 : x
  2. Step 2: Convert to fraction form
    1,113.17/1,669.15 = 333.07/x
  3. Step 3: Cross multiply
    1,113.17x = 1,669.15 × 333.07
  4. Step 4: Simplify right side
    1,113.17x = 555,943.79
  5. Step 5: Solve for x
    x = 555,943.79/1,113.17
  6. Step 6: Final answer
    x = 499.42

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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.