Home / 2,812.20-3,852.65-2,707.03

Finding the Fourth Proportional to 2,812.20, 3,852.65 and 2,707.03

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Solution

The fourth proportional to 2,812.20, 3,852.65 and 2,707.03 is: 3,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.20 : 3,852.65 = 2,707.03 : x
  2. Step 2: Convert to fraction form
    2,812.20/3,852.65 = 2,707.03/x
  3. Step 3: Cross multiply
    2,812.20x = 3,852.65 × 2,707.03
  4. Step 4: Simplify right side
    2,812.20x = 10,429,239.13
  5. Step 5: Solve for x
    x = 10,429,239.13/2,812.20
  6. Step 6: Final answer
    x = 3,708.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.