Home / 3,090.86-4,265.39-1,674.57

Finding the Fourth Proportional to 3,090.86, 4,265.39 and 1,674.57

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Solution

The fourth proportional to 3,090.86, 4,265.39 and 1,674.57 is: 2,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.86 : 4,265.39 = 1,674.57 : x
  2. Step 2: Convert to fraction form
    3,090.86/4,265.39 = 1,674.57/x
  3. Step 3: Cross multiply
    3,090.86x = 4,265.39 × 1,674.57
  4. Step 4: Simplify right side
    3,090.86x = 7,142,714.31
  5. Step 5: Solve for x
    x = 7,142,714.31/3,090.86
  6. Step 6: Final answer
    x = 2,310.92

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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.