Home / 2,091.87-2,886.80-1,160.37

Finding the Fourth Proportional to 2,091.87, 2,886.80 and 1,160.37

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Solution

The fourth proportional to 2,091.87, 2,886.80 and 1,160.37 is: 1,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.87 : 2,886.80 = 1,160.37 : x
  2. Step 2: Convert to fraction form
    2,091.87/2,886.80 = 1,160.37/x
  3. Step 3: Cross multiply
    2,091.87x = 2,886.80 × 1,160.37
  4. Step 4: Simplify right side
    2,091.87x = 3,349,750.31
  5. Step 5: Solve for x
    x = 3,349,750.31/2,091.87
  6. Step 6: Final answer
    x = 1,601.32

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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.