Home / 1,515.11-2,273.06-735.49

Finding the Fourth Proportional to 1,515.11, 2,273.06 and 735.49

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Solution

The fourth proportional to 1,515.11, 2,273.06 and 735.49 is: 1,103.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.11 : 2,273.06 = 735.49 : x
  2. Step 2: Convert to fraction form
    1,515.11/2,273.06 = 735.49/x
  3. Step 3: Cross multiply
    1,515.11x = 2,273.06 × 735.49
  4. Step 4: Simplify right side
    1,515.11x = 1,671,812.90
  5. Step 5: Solve for x
    x = 1,671,812.90/1,515.11
  6. Step 6: Final answer
    x = 1,103.43

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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.