Home / 2,291.21-3,161.52-1,346.93

Finding the Fourth Proportional to 2,291.21, 3,161.52 and 1,346.93

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Solution

The fourth proportional to 2,291.21, 3,161.52 and 1,346.93 is: 1,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.21 : 3,161.52 = 1,346.93 : x
  2. Step 2: Convert to fraction form
    2,291.21/3,161.52 = 1,346.93/x
  3. Step 3: Cross multiply
    2,291.21x = 3,161.52 × 1,346.93
  4. Step 4: Simplify right side
    2,291.21x = 4,258,330.33
  5. Step 5: Solve for x
    x = 4,258,330.33/2,291.21
  6. Step 6: Final answer
    x = 1,858.55

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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.