Home / 2,719.77-4,077.66-2,191.23

Finding the Fourth Proportional to 2,719.77, 4,077.66 and 2,191.23

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Solution

The fourth proportional to 2,719.77, 4,077.66 and 2,191.23 is: 3,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.77 : 4,077.66 = 2,191.23 : x
  2. Step 2: Convert to fraction form
    2,719.77/4,077.66 = 2,191.23/x
  3. Step 3: Cross multiply
    2,719.77x = 4,077.66 × 2,191.23
  4. Step 4: Simplify right side
    2,719.77x = 8,935,090.92
  5. Step 5: Solve for x
    x = 8,935,090.92/2,719.77
  6. Step 6: Final answer
    x = 3,285.24

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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.