Home / 3,675.09-5,070.36-2,102.79

Finding the Fourth Proportional to 3,675.09, 5,070.36 and 2,102.79

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Solution

The fourth proportional to 3,675.09, 5,070.36 and 2,102.79 is: 2,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.09 : 5,070.36 = 2,102.79 : x
  2. Step 2: Convert to fraction form
    3,675.09/5,070.36 = 2,102.79/x
  3. Step 3: Cross multiply
    3,675.09x = 5,070.36 × 2,102.79
  4. Step 4: Simplify right side
    3,675.09x = 10,661,902.30
  5. Step 5: Solve for x
    x = 10,661,902.30/3,675.09
  6. Step 6: Final answer
    x = 2,901.13

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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.