Home / 4,090.14-5,638.72-2,761.74

Finding the Fourth Proportional to 4,090.14, 5,638.72 and 2,761.74

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Solution

The fourth proportional to 4,090.14, 5,638.72 and 2,761.74 is: 3,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.14 : 5,638.72 = 2,761.74 : x
  2. Step 2: Convert to fraction form
    4,090.14/5,638.72 = 2,761.74/x
  3. Step 3: Cross multiply
    4,090.14x = 5,638.72 × 2,761.74
  4. Step 4: Simplify right side
    4,090.14x = 15,572,678.57
  5. Step 5: Solve for x
    x = 15,572,678.57/4,090.14
  6. Step 6: Final answer
    x = 3,807.37

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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.