Home / 5,038.75-7,559.19-2,115.37

Finding the Fourth Proportional to 5,038.75, 7,559.19 and 2,115.37

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Solution

The fourth proportional to 5,038.75, 7,559.19 and 2,115.37 is: 3,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.75 : 7,559.19 = 2,115.37 : x
  2. Step 2: Convert to fraction form
    5,038.75/7,559.19 = 2,115.37/x
  3. Step 3: Cross multiply
    5,038.75x = 7,559.19 × 2,115.37
  4. Step 4: Simplify right side
    5,038.75x = 15,990,483.75
  5. Step 5: Solve for x
    x = 15,990,483.75/5,038.75
  6. Step 6: Final answer
    x = 3,173.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.