Home / 6,503.86-9,752.34-2,120.80

Finding the Fourth Proportional to 6,503.86, 9,752.34 and 2,120.80

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Solution

The fourth proportional to 6,503.86, 9,752.34 and 2,120.80 is: 3,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,503.86 : 9,752.34 = 2,120.80 : x
  2. Step 2: Convert to fraction form
    6,503.86/9,752.34 = 2,120.80/x
  3. Step 3: Cross multiply
    6,503.86x = 9,752.34 × 2,120.80
  4. Step 4: Simplify right side
    6,503.86x = 20,682,762.67
  5. Step 5: Solve for x
    x = 20,682,762.67/6,503.86
  6. Step 6: Final answer
    x = 3,180.08

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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.