Home / 2,865.05-3,953.89-1,606.12

Finding the Fourth Proportional to 2,865.05, 3,953.89 and 1,606.12

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Solution

The fourth proportional to 2,865.05, 3,953.89 and 1,606.12 is: 2,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.05 : 3,953.89 = 1,606.12 : x
  2. Step 2: Convert to fraction form
    2,865.05/3,953.89 = 1,606.12/x
  3. Step 3: Cross multiply
    2,865.05x = 3,953.89 × 1,606.12
  4. Step 4: Simplify right side
    2,865.05x = 6,350,407.91
  5. Step 5: Solve for x
    x = 6,350,407.91/2,865.05
  6. Step 6: Final answer
    x = 2,216.51

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1.5x scale

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.