Home / 1,921.07-2,882.01-623.45

Finding the Fourth Proportional to 1,921.07, 2,882.01 and 623.45

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Solution

The fourth proportional to 1,921.07, 2,882.01 and 623.45 is: 935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.07 : 2,882.01 = 623.45 : x
  2. Step 2: Convert to fraction form
    1,921.07/2,882.01 = 623.45/x
  3. Step 3: Cross multiply
    1,921.07x = 2,882.01 × 623.45
  4. Step 4: Simplify right side
    1,921.07x = 1,796,789.13
  5. Step 5: Solve for x
    x = 1,796,789.13/1,921.07
  6. Step 6: Final answer
    x = 935.31

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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.