Home / 2,719.64-3,749.53-1,962.79

Finding the Fourth Proportional to 2,719.64, 3,749.53 and 1,962.79

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Solution

The fourth proportional to 2,719.64, 3,749.53 and 1,962.79 is: 2,706.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.64 : 3,749.53 = 1,962.79 : x
  2. Step 2: Convert to fraction form
    2,719.64/3,749.53 = 1,962.79/x
  3. Step 3: Cross multiply
    2,719.64x = 3,749.53 × 1,962.79
  4. Step 4: Simplify right side
    2,719.64x = 7,359,539.99
  5. Step 5: Solve for x
    x = 7,359,539.99/2,719.64
  6. Step 6: Final answer
    x = 2,706.07

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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.