Home / 1,927.99-2,660.63-1,043.79

Finding the Fourth Proportional to 1,927.99, 2,660.63 and 1,043.79

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Solution

The fourth proportional to 1,927.99, 2,660.63 and 1,043.79 is: 1,440.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.99 : 2,660.63 = 1,043.79 : x
  2. Step 2: Convert to fraction form
    1,927.99/2,660.63 = 1,043.79/x
  3. Step 3: Cross multiply
    1,927.99x = 2,660.63 × 1,043.79
  4. Step 4: Simplify right side
    1,927.99x = 2,777,147.56
  5. Step 5: Solve for x
    x = 2,777,147.56/1,927.99
  6. Step 6: Final answer
    x = 1,440.44

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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.