Home / 7,211.07-9,945.51-4,972.44

Finding the Fourth Proportional to 7,211.07, 9,945.51 and 4,972.44

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Solution

The fourth proportional to 7,211.07, 9,945.51 and 4,972.44 is: 6,857.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.07 : 9,945.51 = 4,972.44 : x
  2. Step 2: Convert to fraction form
    7,211.07/9,945.51 = 4,972.44/x
  3. Step 3: Cross multiply
    7,211.07x = 9,945.51 × 4,972.44
  4. Step 4: Simplify right side
    7,211.07x = 49,453,451.74
  5. Step 5: Solve for x
    x = 49,453,451.74/7,211.07
  6. Step 6: Final answer
    x = 6,857.99

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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.