Home / 2,140.91-2,953.01-1,611.17

Finding the Fourth Proportional to 2,140.91, 2,953.01 and 1,611.17

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Solution

The fourth proportional to 2,140.91, 2,953.01 and 1,611.17 is: 2,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.91 : 2,953.01 = 1,611.17 : x
  2. Step 2: Convert to fraction form
    2,140.91/2,953.01 = 1,611.17/x
  3. Step 3: Cross multiply
    2,140.91x = 2,953.01 × 1,611.17
  4. Step 4: Simplify right side
    2,140.91x = 4,757,801.12
  5. Step 5: Solve for x
    x = 4,757,801.12/2,140.91
  6. Step 6: Final answer
    x = 2,222.33

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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.