Home / 5,048.85-7,574.36-2,128.53

Finding the Fourth Proportional to 5,048.85, 7,574.36 and 2,128.53

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Solution

The fourth proportional to 5,048.85, 7,574.36 and 2,128.53 is: 3,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,048.85 : 7,574.36 = 2,128.53 : x
  2. Step 2: Convert to fraction form
    5,048.85/7,574.36 = 2,128.53/x
  3. Step 3: Cross multiply
    5,048.85x = 7,574.36 × 2,128.53
  4. Step 4: Simplify right side
    5,048.85x = 16,122,241.85
  5. Step 5: Solve for x
    x = 16,122,241.85/5,048.85
  6. Step 6: Final answer
    x = 3,193.25

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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.