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Finding the Fourth Proportional to 7,011.65, 10,518.53 and 2,080.71

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Solution

The fourth proportional to 7,011.65, 10,518.53 and 2,080.71 is: 3,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.65 : 10,518.53 = 2,080.71 : x
  2. Step 2: Convert to fraction form
    7,011.65/10,518.53 = 2,080.71/x
  3. Step 3: Cross multiply
    7,011.65x = 10,518.53 × 2,080.71
  4. Step 4: Simplify right side
    7,011.65x = 21,886,000.15
  5. Step 5: Solve for x
    x = 21,886,000.15/7,011.65
  6. Step 6: Final answer
    x = 3,121.38

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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.