Home / 1,927.96-2,660.58-1,043.76

Finding the Fourth Proportional to 1,927.96, 2,660.58 and 1,043.76

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Solution

The fourth proportional to 1,927.96, 2,660.58 and 1,043.76 is: 1,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.96 : 2,660.58 = 1,043.76 : x
  2. Step 2: Convert to fraction form
    1,927.96/2,660.58 = 1,043.76/x
  3. Step 3: Cross multiply
    1,927.96x = 2,660.58 × 1,043.76
  4. Step 4: Simplify right side
    1,927.96x = 2,777,018.35
  5. Step 5: Solve for x
    x = 2,777,018.35/1,927.96
  6. Step 6: Final answer
    x = 1,440.39

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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.