Home / 2,290.76-3,161.08-1,346.59

Finding the Fourth Proportional to 2,290.76, 3,161.08 and 1,346.59

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Solution

The fourth proportional to 2,290.76, 3,161.08 and 1,346.59 is: 1,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.76 : 3,161.08 = 1,346.59 : x
  2. Step 2: Convert to fraction form
    2,290.76/3,161.08 = 1,346.59/x
  3. Step 3: Cross multiply
    2,290.76x = 3,161.08 × 1,346.59
  4. Step 4: Simplify right side
    2,290.76x = 4,256,676.78
  5. Step 5: Solve for x
    x = 4,256,676.78/2,290.76
  6. Step 6: Final answer
    x = 1,858.19

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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.