Home / 5,137.52-7,090.20-2,899.28

Finding the Fourth Proportional to 5,137.52, 7,090.20 and 2,899.28

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Solution

The fourth proportional to 5,137.52, 7,090.20 and 2,899.28 is: 4,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.52 : 7,090.20 = 2,899.28 : x
  2. Step 2: Convert to fraction form
    5,137.52/7,090.20 = 2,899.28/x
  3. Step 3: Cross multiply
    5,137.52x = 7,090.20 × 2,899.28
  4. Step 4: Simplify right side
    5,137.52x = 20,556,475.06
  5. Step 5: Solve for x
    x = 20,556,475.06/5,137.52
  6. Step 6: Final answer
    x = 4,001.24

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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.