Home / 1,119.20-1,675.33-953.12

Finding the Fourth Proportional to 1,119.20, 1,675.33 and 953.12

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Solution

The fourth proportional to 1,119.20, 1,675.33 and 953.12 is: 1,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.20 : 1,675.33 = 953.12 : x
  2. Step 2: Convert to fraction form
    1,119.20/1,675.33 = 953.12/x
  3. Step 3: Cross multiply
    1,119.20x = 1,675.33 × 953.12
  4. Step 4: Simplify right side
    1,119.20x = 1,596,798.87
  5. Step 5: Solve for x
    x = 1,596,798.87/1,119.20
  6. Step 6: Final answer
    x = 1,426.73

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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.