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Finding the Fourth Proportional to 7,957.50, 10,980.36 and 4,420.26

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Solution

The fourth proportional to 7,957.50, 10,980.36 and 4,420.26 is: 6,099.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.50 : 10,980.36 = 4,420.26 : x
  2. Step 2: Convert to fraction form
    7,957.50/10,980.36 = 4,420.26/x
  3. Step 3: Cross multiply
    7,957.50x = 10,980.36 × 4,420.26
  4. Step 4: Simplify right side
    7,957.50x = 48,536,046.09
  5. Step 5: Solve for x
    x = 48,536,046.09/7,957.50
  6. Step 6: Final answer
    x = 6,099.41

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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.