Home / 6,131.25-8,461.13-3,647.25

Finding the Fourth Proportional to 6,131.25, 8,461.13 and 3,647.25

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Solution

The fourth proportional to 6,131.25, 8,461.13 and 3,647.25 is: 5,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.25 : 8,461.13 = 3,647.25 : x
  2. Step 2: Convert to fraction form
    6,131.25/8,461.13 = 3,647.25/x
  3. Step 3: Cross multiply
    6,131.25x = 8,461.13 × 3,647.25
  4. Step 4: Simplify right side
    6,131.25x = 30,859,838.16
  5. Step 5: Solve for x
    x = 30,859,838.16/6,131.25
  6. Step 6: Final answer
    x = 5,033.21

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1.5x scale

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.