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Finding the Fourth Proportional to 7,007.66, 10,515.14 and 2,850.74

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Solution

The fourth proportional to 7,007.66, 10,515.14 and 2,850.74 is: 4,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.66 : 10,515.14 = 2,850.74 : x
  2. Step 2: Convert to fraction form
    7,007.66/10,515.14 = 2,850.74/x
  3. Step 3: Cross multiply
    7,007.66x = 10,515.14 × 2,850.74
  4. Step 4: Simplify right side
    7,007.66x = 29,975,980.66
  5. Step 5: Solve for x
    x = 29,975,980.66/7,007.66
  6. Step 6: Final answer
    x = 4,277.60

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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.