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Finding the Fourth Proportional to 7,871.54, 11,803.64 and 2,941.06

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Solution

The fourth proportional to 7,871.54, 11,803.64 and 2,941.06 is: 4,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.54 : 11,803.64 = 2,941.06 : x
  2. Step 2: Convert to fraction form
    7,871.54/11,803.64 = 2,941.06/x
  3. Step 3: Cross multiply
    7,871.54x = 11,803.64 × 2,941.06
  4. Step 4: Simplify right side
    7,871.54x = 34,715,213.46
  5. Step 5: Solve for x
    x = 34,715,213.46/7,871.54
  6. Step 6: Final answer
    x = 4,410.22

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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.