Home / 2,091.10-2,886-1,206.94

Finding the Fourth Proportional to 2,091.10, 2,886 and 1,206.94

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Solution

The fourth proportional to 2,091.10, 2,886 and 1,206.94 is: 1,665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.10 : 2,886 = 1,206.94 : x
  2. Step 2: Convert to fraction form
    2,091.10/2,886 = 1,206.94/x
  3. Step 3: Cross multiply
    2,091.10x = 2,886 × 1,206.94
  4. Step 4: Simplify right side
    2,091.10x = 3,483,228.84
  5. Step 5: Solve for x
    x = 3,483,228.84/2,091.10
  6. Step 6: Final answer
    x = 1,665.74

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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.