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Finding the Fourth Proportional to 7,956.66, 10,980.44 and 4,420.15

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Solution

The fourth proportional to 7,956.66, 10,980.44 and 4,420.15 is: 6,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.66 : 10,980.44 = 4,420.15 : x
  2. Step 2: Convert to fraction form
    7,956.66/10,980.44 = 4,420.15/x
  3. Step 3: Cross multiply
    7,956.66x = 10,980.44 × 4,420.15
  4. Step 4: Simplify right side
    7,956.66x = 48,535,191.87
  5. Step 5: Solve for x
    x = 48,535,191.87/7,956.66
  6. Step 6: Final answer
    x = 6,099.95

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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.