Home / 5,125.19-7,072.81-3,000.25

Finding the Fourth Proportional to 5,125.19, 7,072.81 and 3,000.25

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Solution

The fourth proportional to 5,125.19, 7,072.81 and 3,000.25 is: 4,140.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.19 : 7,072.81 = 3,000.25 : x
  2. Step 2: Convert to fraction form
    5,125.19/7,072.81 = 3,000.25/x
  3. Step 3: Cross multiply
    5,125.19x = 7,072.81 × 3,000.25
  4. Step 4: Simplify right side
    5,125.19x = 21,220,173.02
  5. Step 5: Solve for x
    x = 21,220,173.02/5,125.19
  6. Step 6: Final answer
    x = 4,140.37

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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.