Home / 2,091.61-2,886.31-1,195.32

Finding the Fourth Proportional to 2,091.61, 2,886.31 and 1,195.32

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Solution

The fourth proportional to 2,091.61, 2,886.31 and 1,195.32 is: 1,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.61 : 2,886.31 = 1,195.32 : x
  2. Step 2: Convert to fraction form
    2,091.61/2,886.31 = 1,195.32/x
  3. Step 3: Cross multiply
    2,091.61x = 2,886.31 × 1,195.32
  4. Step 4: Simplify right side
    2,091.61x = 3,450,064.07
  5. Step 5: Solve for x
    x = 3,450,064.07/2,091.61
  6. Step 6: Final answer
    x = 1,649.48

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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.