Home / 5,137.26-7,089.38-2,779.35

Finding the Fourth Proportional to 5,137.26, 7,089.38 and 2,779.35

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Solution

The fourth proportional to 5,137.26, 7,089.38 and 2,779.35 is: 3,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.26 : 7,089.38 = 2,779.35 : x
  2. Step 2: Convert to fraction form
    5,137.26/7,089.38 = 2,779.35/x
  3. Step 3: Cross multiply
    5,137.26x = 7,089.38 × 2,779.35
  4. Step 4: Simplify right side
    5,137.26x = 19,703,854.41
  5. Step 5: Solve for x
    x = 19,703,854.41/5,137.26
  6. Step 6: Final answer
    x = 3,835.48

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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.