Home / 3,526.92-5,290.38-1,218.60

Finding the Fourth Proportional to 3,526.92, 5,290.38 and 1,218.60

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Solution

The fourth proportional to 3,526.92, 5,290.38 and 1,218.60 is: 1,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.92 : 5,290.38 = 1,218.60 : x
  2. Step 2: Convert to fraction form
    3,526.92/5,290.38 = 1,218.60/x
  3. Step 3: Cross multiply
    3,526.92x = 5,290.38 × 1,218.60
  4. Step 4: Simplify right side
    3,526.92x = 6,446,857.07
  5. Step 5: Solve for x
    x = 6,446,857.07/3,526.92
  6. Step 6: Final answer
    x = 1,827.90

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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.