Home / 7,211.15-10,816.65-2,280.79

Finding the Fourth Proportional to 7,211.15, 10,816.65 and 2,280.79

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Solution

The fourth proportional to 7,211.15, 10,816.65 and 2,280.79 is: 3,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.15 : 10,816.65 = 2,280.79 : x
  2. Step 2: Convert to fraction form
    7,211.15/10,816.65 = 2,280.79/x
  3. Step 3: Cross multiply
    7,211.15x = 10,816.65 × 2,280.79
  4. Step 4: Simplify right side
    7,211.15x = 24,670,520.67
  5. Step 5: Solve for x
    x = 24,670,520.67/7,211.15
  6. Step 6: Final answer
    x = 3,421.16

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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.