Home / 7,621.02-11,429.46-2,690.01

Finding the Fourth Proportional to 7,621.02, 11,429.46 and 2,690.01

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Solution

The fourth proportional to 7,621.02, 11,429.46 and 2,690.01 is: 4,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.02 : 11,429.46 = 2,690.01 : x
  2. Step 2: Convert to fraction form
    7,621.02/11,429.46 = 2,690.01/x
  3. Step 3: Cross multiply
    7,621.02x = 11,429.46 × 2,690.01
  4. Step 4: Simplify right side
    7,621.02x = 30,745,361.69
  5. Step 5: Solve for x
    x = 30,745,361.69/7,621.02
  6. Step 6: Final answer
    x = 4,034.28

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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.