Home / 1,621-2,235.06-1,325.64

Finding the Fourth Proportional to 1,621, 2,235.06 and 1,325.64

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Solution

The fourth proportional to 1,621, 2,235.06 and 1,325.64 is: 1,827.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621 : 2,235.06 = 1,325.64 : x
  2. Step 2: Convert to fraction form
    1,621/2,235.06 = 1,325.64/x
  3. Step 3: Cross multiply
    1,621x = 2,235.06 × 1,325.64
  4. Step 4: Simplify right side
    1,621x = 2,962,884.94
  5. Step 5: Solve for x
    x = 2,962,884.94/1,621
  6. Step 6: Final answer
    x = 1,827.81

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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.