Home / 2,421.09-3,340.59-1,673.85

Finding the Fourth Proportional to 2,421.09, 3,340.59 and 1,673.85

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Solution

The fourth proportional to 2,421.09, 3,340.59 and 1,673.85 is: 2,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.09 : 3,340.59 = 1,673.85 : x
  2. Step 2: Convert to fraction form
    2,421.09/3,340.59 = 1,673.85/x
  3. Step 3: Cross multiply
    2,421.09x = 3,340.59 × 1,673.85
  4. Step 4: Simplify right side
    2,421.09x = 5,591,646.57
  5. Step 5: Solve for x
    x = 5,591,646.57/2,421.09
  6. Step 6: Final answer
    x = 2,309.56

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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.