Home / 2,091.50-2,886.36-1,160

Finding the Fourth Proportional to 2,091.50, 2,886.36 and 1,160

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Solution

The fourth proportional to 2,091.50, 2,886.36 and 1,160 is: 1,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.50 : 2,886.36 = 1,160 : x
  2. Step 2: Convert to fraction form
    2,091.50/2,886.36 = 1,160/x
  3. Step 3: Cross multiply
    2,091.50x = 2,886.36 × 1,160
  4. Step 4: Simplify right side
    2,091.50x = 3,348,177.60
  5. Step 5: Solve for x
    x = 3,348,177.60/2,091.50
  6. Step 6: Final answer
    x = 1,600.85

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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.