Home / 1,431.26-2,145.02-737.33

Finding the Fourth Proportional to 1,431.26, 2,145.02 and 737.33

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Solution

The fourth proportional to 1,431.26, 2,145.02 and 737.33 is: 1,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.26 : 2,145.02 = 737.33 : x
  2. Step 2: Convert to fraction form
    1,431.26/2,145.02 = 737.33/x
  3. Step 3: Cross multiply
    1,431.26x = 2,145.02 × 737.33
  4. Step 4: Simplify right side
    1,431.26x = 1,581,583.91
  5. Step 5: Solve for x
    x = 1,581,583.91/1,431.26
  6. Step 6: Final answer
    x = 1,105.03

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1.5x scale

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.