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Finding the Fourth Proportional to 6,628.16, 9,927.66 and 2,720.72

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Solution

The fourth proportional to 6,628.16, 9,927.66 and 2,720.72 is: 4,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.16 : 9,927.66 = 2,720.72 : x
  2. Step 2: Convert to fraction form
    6,628.16/9,927.66 = 2,720.72/x
  3. Step 3: Cross multiply
    6,628.16x = 9,927.66 × 2,720.72
  4. Step 4: Simplify right side
    6,628.16x = 27,010,383.12
  5. Step 5: Solve for x
    x = 27,010,383.12/6,628.16
  6. Step 6: Final answer
    x = 4,075.10

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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.