Home / 3,128.36-4,317.86-2,066.34

Finding the Fourth Proportional to 3,128.36, 4,317.86 and 2,066.34

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Solution

The fourth proportional to 3,128.36, 4,317.86 and 2,066.34 is: 2,852.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.36 : 4,317.86 = 2,066.34 : x
  2. Step 2: Convert to fraction form
    3,128.36/4,317.86 = 2,066.34/x
  3. Step 3: Cross multiply
    3,128.36x = 4,317.86 × 2,066.34
  4. Step 4: Simplify right side
    3,128.36x = 8,922,166.83
  5. Step 5: Solve for x
    x = 8,922,166.83/3,128.36
  6. Step 6: Final answer
    x = 2,852.03

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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.