Home / 5,821.98-8,728.18-3,320.36

Finding the Fourth Proportional to 5,821.98, 8,728.18 and 3,320.36

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Solution

The fourth proportional to 5,821.98, 8,728.18 and 3,320.36 is: 4,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.98 : 8,728.18 = 3,320.36 : x
  2. Step 2: Convert to fraction form
    5,821.98/8,728.18 = 3,320.36/x
  3. Step 3: Cross multiply
    5,821.98x = 8,728.18 × 3,320.36
  4. Step 4: Simplify right side
    5,821.98x = 28,980,699.74
  5. Step 5: Solve for x
    x = 28,980,699.74/5,821.98
  6. Step 6: Final answer
    x = 4,977.81

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1.5x scale

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.