Home / 7,213.12-10,815.36-2,597.20

Finding the Fourth Proportional to 7,213.12, 10,815.36 and 2,597.20

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Solution

The fourth proportional to 7,213.12, 10,815.36 and 2,597.20 is: 3,894.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.12 : 10,815.36 = 2,597.20 : x
  2. Step 2: Convert to fraction form
    7,213.12/10,815.36 = 2,597.20/x
  3. Step 3: Cross multiply
    7,213.12x = 10,815.36 × 2,597.20
  4. Step 4: Simplify right side
    7,213.12x = 28,089,652.99
  5. Step 5: Solve for x
    x = 28,089,652.99/7,213.12
  6. Step 6: Final answer
    x = 3,894.24

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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.