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Finding the Fourth Proportional to 3,520.64, 5,275.92 and 1,790.48

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Solution

The fourth proportional to 3,520.64, 5,275.92 and 1,790.48 is: 2,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.64 : 5,275.92 = 1,790.48 : x
  2. Step 2: Convert to fraction form
    3,520.64/5,275.92 = 1,790.48/x
  3. Step 3: Cross multiply
    3,520.64x = 5,275.92 × 1,790.48
  4. Step 4: Simplify right side
    3,520.64x = 9,446,429.24
  5. Step 5: Solve for x
    x = 9,446,429.24/3,520.64
  6. Step 6: Final answer
    x = 2,683.16

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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.