Home / 6,172.66-8,518.40-3,653.85

Finding the Fourth Proportional to 6,172.66, 8,518.40 and 3,653.85

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Solution

The fourth proportional to 6,172.66, 8,518.40 and 3,653.85 is: 5,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.66 : 8,518.40 = 3,653.85 : x
  2. Step 2: Convert to fraction form
    6,172.66/8,518.40 = 3,653.85/x
  3. Step 3: Cross multiply
    6,172.66x = 8,518.40 × 3,653.85
  4. Step 4: Simplify right side
    6,172.66x = 31,124,955.84
  5. Step 5: Solve for x
    x = 31,124,955.84/6,172.66
  6. Step 6: Final answer
    x = 5,042.39

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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.