Home / 3,520.08-5,274.78-2,638.32

Finding the Fourth Proportional to 3,520.08, 5,274.78 and 2,638.32

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Solution

The fourth proportional to 3,520.08, 5,274.78 and 2,638.32 is: 3,953.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.08 : 5,274.78 = 2,638.32 : x
  2. Step 2: Convert to fraction form
    3,520.08/5,274.78 = 2,638.32/x
  3. Step 3: Cross multiply
    3,520.08x = 5,274.78 × 2,638.32
  4. Step 4: Simplify right side
    3,520.08x = 13,916,557.57
  5. Step 5: Solve for x
    x = 13,916,557.57/3,520.08
  6. Step 6: Final answer
    x = 3,953.48

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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.