Home / 2,782.48-4,170.64-1,856.76

Finding the Fourth Proportional to 2,782.48, 4,170.64 and 1,856.76

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Solution

The fourth proportional to 2,782.48, 4,170.64 and 1,856.76 is: 2,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.48 : 4,170.64 = 1,856.76 : x
  2. Step 2: Convert to fraction form
    2,782.48/4,170.64 = 1,856.76/x
  3. Step 3: Cross multiply
    2,782.48x = 4,170.64 × 1,856.76
  4. Step 4: Simplify right side
    2,782.48x = 7,743,872.88
  5. Step 5: Solve for x
    x = 7,743,872.88/2,782.48
  6. Step 6: Final answer
    x = 2,783.09

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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.