Home / 5,072.79-7,000.81-3,082.96

Finding the Fourth Proportional to 5,072.79, 7,000.81 and 3,082.96

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Solution

The fourth proportional to 5,072.79, 7,000.81 and 3,082.96 is: 4,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.79 : 7,000.81 = 3,082.96 : x
  2. Step 2: Convert to fraction form
    5,072.79/7,000.81 = 3,082.96/x
  3. Step 3: Cross multiply
    5,072.79x = 7,000.81 × 3,082.96
  4. Step 4: Simplify right side
    5,072.79x = 21,583,217.20
  5. Step 5: Solve for x
    x = 21,583,217.20/5,072.79
  6. Step 6: Final answer
    x = 4,254.70

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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.