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Finding the Fourth Proportional to 1,927.26, 2,660.00 and 1,219.01

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Solution

The fourth proportional to 1,927.26, 2,660.00 and 1,219.01 is: 1,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.26 : 2,660.00 = 1,219.01 : x
  2. Step 2: Convert to fraction form
    1,927.26/2,660.00 = 1,219.01/x
  3. Step 3: Cross multiply
    1,927.26x = 2,660.00 × 1,219.01
  4. Step 4: Simplify right side
    1,927.26x = 3,242,547.20
  5. Step 5: Solve for x
    x = 3,242,547.20/1,927.26
  6. Step 6: Final answer
    x = 1,682.46

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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.