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Finding the Fourth Proportional to 7,237.50, 10,856.25 and 2,620.50

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Solution

The fourth proportional to 7,237.50, 10,856.25 and 2,620.50 is: 3,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.50 : 10,856.25 = 2,620.50 : x
  2. Step 2: Convert to fraction form
    7,237.50/10,856.25 = 2,620.50/x
  3. Step 3: Cross multiply
    7,237.50x = 10,856.25 × 2,620.50
  4. Step 4: Simplify right side
    7,237.50x = 28,448,803.13
  5. Step 5: Solve for x
    x = 28,448,803.13/7,237.50
  6. Step 6: Final answer
    x = 3,930.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.