Home / 7,210.46-10,815.42-2,280.62

Finding the Fourth Proportional to 7,210.46, 10,815.42 and 2,280.62

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Solution

The fourth proportional to 7,210.46, 10,815.42 and 2,280.62 is: 3,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.46 : 10,815.42 = 2,280.62 : x
  2. Step 2: Convert to fraction form
    7,210.46/10,815.42 = 2,280.62/x
  3. Step 3: Cross multiply
    7,210.46x = 10,815.42 × 2,280.62
  4. Step 4: Simplify right side
    7,210.46x = 24,665,863.16
  5. Step 5: Solve for x
    x = 24,665,863.16/7,210.46
  6. Step 6: Final answer
    x = 3,420.84

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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.