Home / 5,137.36-7,089.56-2,779.49

Finding the Fourth Proportional to 5,137.36, 7,089.56 and 2,779.49

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Solution

The fourth proportional to 5,137.36, 7,089.56 and 2,779.49 is: 3,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.36 : 7,089.56 = 2,779.49 : x
  2. Step 2: Convert to fraction form
    5,137.36/7,089.56 = 2,779.49/x
  3. Step 3: Cross multiply
    5,137.36x = 7,089.56 × 2,779.49
  4. Step 4: Simplify right side
    5,137.36x = 19,705,375.37
  5. Step 5: Solve for x
    x = 19,705,375.37/5,137.36
  6. Step 6: Final answer
    x = 3,835.70

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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.