Home / 1,015.36-1,401.20-573.30

Finding the Fourth Proportional to 1,015.36, 1,401.20 and 573.30

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Solution

The fourth proportional to 1,015.36, 1,401.20 and 573.30 is: 791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.36 : 1,401.20 = 573.30 : x
  2. Step 2: Convert to fraction form
    1,015.36/1,401.20 = 573.30/x
  3. Step 3: Cross multiply
    1,015.36x = 1,401.20 × 573.30
  4. Step 4: Simplify right side
    1,015.36x = 803,307.24
  5. Step 5: Solve for x
    x = 803,307.24/1,015.36
  6. Step 6: Final answer
    x = 791.16

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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.