Home / 6,216.40-9,317.04-3,872.80

Finding the Fourth Proportional to 6,216.40, 9,317.04 and 3,872.80

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Solution

The fourth proportional to 6,216.40, 9,317.04 and 3,872.80 is: 5,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.40 : 9,317.04 = 3,872.80 : x
  2. Step 2: Convert to fraction form
    6,216.40/9,317.04 = 3,872.80/x
  3. Step 3: Cross multiply
    6,216.40x = 9,317.04 × 3,872.80
  4. Step 4: Simplify right side
    6,216.40x = 36,083,032.51
  5. Step 5: Solve for x
    x = 36,083,032.51/6,216.40
  6. Step 6: Final answer
    x = 5,804.49

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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.