Home / 2,077.92-2,865.78-1,611.36

Finding the Fourth Proportional to 2,077.92, 2,865.78 and 1,611.36

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Solution

The fourth proportional to 2,077.92, 2,865.78 and 1,611.36 is: 2,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.92 : 2,865.78 = 1,611.36 : x
  2. Step 2: Convert to fraction form
    2,077.92/2,865.78 = 1,611.36/x
  3. Step 3: Cross multiply
    2,077.92x = 2,865.78 × 1,611.36
  4. Step 4: Simplify right side
    2,077.92x = 4,617,803.26
  5. Step 5: Solve for x
    x = 4,617,803.26/2,077.92
  6. Step 6: Final answer
    x = 2,222.32

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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.