Home / 1,015.35-1,401.21-573.23

Finding the Fourth Proportional to 1,015.35, 1,401.21 and 573.23

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Solution

The fourth proportional to 1,015.35, 1,401.21 and 573.23 is: 791.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.35 : 1,401.21 = 573.23 : x
  2. Step 2: Convert to fraction form
    1,015.35/1,401.21 = 573.23/x
  3. Step 3: Cross multiply
    1,015.35x = 1,401.21 × 573.23
  4. Step 4: Simplify right side
    1,015.35x = 803,208.60
  5. Step 5: Solve for x
    x = 803,208.60/1,015.35
  6. Step 6: Final answer
    x = 791.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.