Home / 5,072.50-7,000.20-2,834.47

Finding the Fourth Proportional to 5,072.50, 7,000.20 and 2,834.47

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Solution

The fourth proportional to 5,072.50, 7,000.20 and 2,834.47 is: 3,911.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.50 : 7,000.20 = 2,834.47 : x
  2. Step 2: Convert to fraction form
    5,072.50/7,000.20 = 2,834.47/x
  3. Step 3: Cross multiply
    5,072.50x = 7,000.20 × 2,834.47
  4. Step 4: Simplify right side
    5,072.50x = 19,841,856.89
  5. Step 5: Solve for x
    x = 19,841,856.89/5,072.50
  6. Step 6: Final answer
    x = 3,911.65

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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.