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Finding the Fourth Proportional to 7,751.49, 10,696.60 and 4,214.67

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Solution

The fourth proportional to 7,751.49, 10,696.60 and 4,214.67 is: 5,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.49 : 10,696.60 = 4,214.67 : x
  2. Step 2: Convert to fraction form
    7,751.49/10,696.60 = 4,214.67/x
  3. Step 3: Cross multiply
    7,751.49x = 10,696.60 × 4,214.67
  4. Step 4: Simplify right side
    7,751.49x = 45,082,639.12
  5. Step 5: Solve for x
    x = 45,082,639.12/7,751.49
  6. Step 6: Final answer
    x = 5,816.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.