Home / 1,113.28-1,669.47-333.01

Finding the Fourth Proportional to 1,113.28, 1,669.47 and 333.01

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Solution

The fourth proportional to 1,113.28, 1,669.47 and 333.01 is: 499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.28 : 1,669.47 = 333.01 : x
  2. Step 2: Convert to fraction form
    1,113.28/1,669.47 = 333.01/x
  3. Step 3: Cross multiply
    1,113.28x = 1,669.47 × 333.01
  4. Step 4: Simplify right side
    1,113.28x = 555,950.20
  5. Step 5: Solve for x
    x = 555,950.20/1,113.28
  6. Step 6: Final answer
    x = 499.38

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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.