Home / 3,513.72-5,271.16-1,322.64

Finding the Fourth Proportional to 3,513.72, 5,271.16 and 1,322.64

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Solution

The fourth proportional to 3,513.72, 5,271.16 and 1,322.64 is: 1,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.72 : 5,271.16 = 1,322.64 : x
  2. Step 2: Convert to fraction form
    3,513.72/5,271.16 = 1,322.64/x
  3. Step 3: Cross multiply
    3,513.72x = 5,271.16 × 1,322.64
  4. Step 4: Simplify right side
    3,513.72x = 6,971,847.06
  5. Step 5: Solve for x
    x = 6,971,847.06/3,513.72
  6. Step 6: Final answer
    x = 1,984.18

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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.