Home / 1,106.21-1,658.80-375.59

Finding the Fourth Proportional to 1,106.21, 1,658.80 and 375.59

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Solution

The fourth proportional to 1,106.21, 1,658.80 and 375.59 is: 563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.21 : 1,658.80 = 375.59 : x
  2. Step 2: Convert to fraction form
    1,106.21/1,658.80 = 375.59/x
  3. Step 3: Cross multiply
    1,106.21x = 1,658.80 × 375.59
  4. Step 4: Simplify right side
    1,106.21x = 623,028.69
  5. Step 5: Solve for x
    x = 623,028.69/1,106.21
  6. Step 6: Final answer
    x = 563.21

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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.