Home / 2,708.42-4,054.37-2,090.57

Finding the Fourth Proportional to 2,708.42, 4,054.37 and 2,090.57

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Solution

The fourth proportional to 2,708.42, 4,054.37 and 2,090.57 is: 3,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.42 : 4,054.37 = 2,090.57 : x
  2. Step 2: Convert to fraction form
    2,708.42/4,054.37 = 2,090.57/x
  3. Step 3: Cross multiply
    2,708.42x = 4,054.37 × 2,090.57
  4. Step 4: Simplify right side
    2,708.42x = 8,475,913.57
  5. Step 5: Solve for x
    x = 8,475,913.57/2,708.42
  6. Step 6: Final answer
    x = 3,129.47

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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.