Home / 5,038.60-7,559.10-2,115.40

Finding the Fourth Proportional to 5,038.60, 7,559.10 and 2,115.40

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Solution

The fourth proportional to 5,038.60, 7,559.10 and 2,115.40 is: 3,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.60 : 7,559.10 = 2,115.40 : x
  2. Step 2: Convert to fraction form
    5,038.60/7,559.10 = 2,115.40/x
  3. Step 3: Cross multiply
    5,038.60x = 7,559.10 × 2,115.40
  4. Step 4: Simplify right side
    5,038.60x = 15,990,520.14
  5. Step 5: Solve for x
    x = 15,990,520.14/5,038.60
  6. Step 6: Final answer
    x = 3,173.60

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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.