Home / 2,718.17-3,749.36-2,087.75

Finding the Fourth Proportional to 2,718.17, 3,749.36 and 2,087.75

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Solution

The fourth proportional to 2,718.17, 3,749.36 and 2,087.75 is: 2,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.17 : 3,749.36 = 2,087.75 : x
  2. Step 2: Convert to fraction form
    2,718.17/3,749.36 = 2,087.75/x
  3. Step 3: Cross multiply
    2,718.17x = 3,749.36 × 2,087.75
  4. Step 4: Simplify right side
    2,718.17x = 7,827,697.15
  5. Step 5: Solve for x
    x = 7,827,697.15/2,718.17
  6. Step 6: Final answer
    x = 2,879.77

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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.