Home / 7,621.17-11,431.41-2,940.32

Finding the Fourth Proportional to 7,621.17, 11,431.41 and 2,940.32

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Solution

The fourth proportional to 7,621.17, 11,431.41 and 2,940.32 is: 4,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.17 : 11,431.41 = 2,940.32 : x
  2. Step 2: Convert to fraction form
    7,621.17/11,431.41 = 2,940.32/x
  3. Step 3: Cross multiply
    7,621.17x = 11,431.41 × 2,940.32
  4. Step 4: Simplify right side
    7,621.17x = 33,611,946.29
  5. Step 5: Solve for x
    x = 33,611,946.29/7,621.17
  6. Step 6: Final answer
    x = 4,410.34

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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.