Home / 5,213.15-7,811.99-2,740.47

Finding the Fourth Proportional to 5,213.15, 7,811.99 and 2,740.47

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Solution

The fourth proportional to 5,213.15, 7,811.99 and 2,740.47 is: 4,106.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.15 : 7,811.99 = 2,740.47 : x
  2. Step 2: Convert to fraction form
    5,213.15/7,811.99 = 2,740.47/x
  3. Step 3: Cross multiply
    5,213.15x = 7,811.99 × 2,740.47
  4. Step 4: Simplify right side
    5,213.15x = 21,408,549.72
  5. Step 5: Solve for x
    x = 21,408,549.72/5,213.15
  6. Step 6: Final answer
    x = 4,106.64

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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.