Home / 3,091.60-4,638.48-2,055.70

Finding the Fourth Proportional to 3,091.60, 4,638.48 and 2,055.70

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Solution

The fourth proportional to 3,091.60, 4,638.48 and 2,055.70 is: 3,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.60 : 4,638.48 = 2,055.70 : x
  2. Step 2: Convert to fraction form
    3,091.60/4,638.48 = 2,055.70/x
  3. Step 3: Cross multiply
    3,091.60x = 4,638.48 × 2,055.70
  4. Step 4: Simplify right side
    3,091.60x = 9,535,323.34
  5. Step 5: Solve for x
    x = 9,535,323.34/3,091.60
  6. Step 6: Final answer
    x = 3,084.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.