Home / 2,847.36-3,931.19-1,786.58

Finding the Fourth Proportional to 2,847.36, 3,931.19 and 1,786.58

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Solution

The fourth proportional to 2,847.36, 3,931.19 and 1,786.58 is: 2,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.36 : 3,931.19 = 1,786.58 : x
  2. Step 2: Convert to fraction form
    2,847.36/3,931.19 = 1,786.58/x
  3. Step 3: Cross multiply
    2,847.36x = 3,931.19 × 1,786.58
  4. Step 4: Simplify right side
    2,847.36x = 7,023,400.40
  5. Step 5: Solve for x
    x = 7,023,400.40/2,847.36
  6. Step 6: Final answer
    x = 2,466.63

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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.