Home / 5,223.60-7,208.48-2,985.36

Finding the Fourth Proportional to 5,223.60, 7,208.48 and 2,985.36

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Solution

The fourth proportional to 5,223.60, 7,208.48 and 2,985.36 is: 4,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.60 : 7,208.48 = 2,985.36 : x
  2. Step 2: Convert to fraction form
    5,223.60/7,208.48 = 2,985.36/x
  3. Step 3: Cross multiply
    5,223.60x = 7,208.48 × 2,985.36
  4. Step 4: Simplify right side
    5,223.60x = 21,519,907.85
  5. Step 5: Solve for x
    x = 21,519,907.85/5,223.60
  6. Step 6: Final answer
    x = 4,119.75

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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.