Home / 5,137.89-7,090.47-2,899.64

Finding the Fourth Proportional to 5,137.89, 7,090.47 and 2,899.64

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Solution

The fourth proportional to 5,137.89, 7,090.47 and 2,899.64 is: 4,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.89 : 7,090.47 = 2,899.64 : x
  2. Step 2: Convert to fraction form
    5,137.89/7,090.47 = 2,899.64/x
  3. Step 3: Cross multiply
    5,137.89x = 7,090.47 × 2,899.64
  4. Step 4: Simplify right side
    5,137.89x = 20,559,810.43
  5. Step 5: Solve for x
    x = 20,559,810.43/5,137.89
  6. Step 6: Final answer
    x = 4,001.61

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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.