Home / 5,072.81-7,000.98-3,185.82

Finding the Fourth Proportional to 5,072.81, 7,000.98 and 3,185.82

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Solution

The fourth proportional to 5,072.81, 7,000.98 and 3,185.82 is: 4,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.81 : 7,000.98 = 3,185.82 : x
  2. Step 2: Convert to fraction form
    5,072.81/7,000.98 = 3,185.82/x
  3. Step 3: Cross multiply
    5,072.81x = 7,000.98 × 3,185.82
  4. Step 4: Simplify right side
    5,072.81x = 22,303,862.10
  5. Step 5: Solve for x
    x = 22,303,862.10/5,072.81
  6. Step 6: Final answer
    x = 4,396.75

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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.