Home / 2,682.96-4,021.44-1,955.76

Finding the Fourth Proportional to 2,682.96, 4,021.44 and 1,955.76

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Solution

The fourth proportional to 2,682.96, 4,021.44 and 1,955.76 is: 2,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.96 : 4,021.44 = 1,955.76 : x
  2. Step 2: Convert to fraction form
    2,682.96/4,021.44 = 1,955.76/x
  3. Step 3: Cross multiply
    2,682.96x = 4,021.44 × 1,955.76
  4. Step 4: Simplify right side
    2,682.96x = 7,864,971.49
  5. Step 5: Solve for x
    x = 7,864,971.49/2,682.96
  6. Step 6: Final answer
    x = 2,931.45

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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.