Home / 1,513.35-2,270.39-635.37

Finding the Fourth Proportional to 1,513.35, 2,270.39 and 635.37

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Solution

The fourth proportional to 1,513.35, 2,270.39 and 635.37 is: 953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.35 : 2,270.39 = 635.37 : x
  2. Step 2: Convert to fraction form
    1,513.35/2,270.39 = 635.37/x
  3. Step 3: Cross multiply
    1,513.35x = 2,270.39 × 635.37
  4. Step 4: Simplify right side
    1,513.35x = 1,442,534.52
  5. Step 5: Solve for x
    x = 1,442,534.52/1,513.35
  6. Step 6: Final answer
    x = 953.21

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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.