Home / 2,736.12-3,771.90-1,948.80

Finding the Fourth Proportional to 2,736.12, 3,771.90 and 1,948.80

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Solution

The fourth proportional to 2,736.12, 3,771.90 and 1,948.80 is: 2,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.12 : 3,771.90 = 1,948.80 : x
  2. Step 2: Convert to fraction form
    2,736.12/3,771.90 = 1,948.80/x
  3. Step 3: Cross multiply
    2,736.12x = 3,771.90 × 1,948.80
  4. Step 4: Simplify right side
    2,736.12x = 7,350,678.72
  5. Step 5: Solve for x
    x = 7,350,678.72/2,736.12
  6. Step 6: Final answer
    x = 2,686.53

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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.