Home / 6,628.10-9,146.57-3,643.65

Finding the Fourth Proportional to 6,628.10, 9,146.57 and 3,643.65

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Solution

The fourth proportional to 6,628.10, 9,146.57 and 3,643.65 is: 5,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.10 : 9,146.57 = 3,643.65 : x
  2. Step 2: Convert to fraction form
    6,628.10/9,146.57 = 3,643.65/x
  3. Step 3: Cross multiply
    6,628.10x = 9,146.57 × 3,643.65
  4. Step 4: Simplify right side
    6,628.10x = 33,326,881.56
  5. Step 5: Solve for x
    x = 33,326,881.56/6,628.10
  6. Step 6: Final answer
    x = 5,028.12

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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.