Home / 3,354.77-4,629.47-1,938.39

Finding the Fourth Proportional to 3,354.77, 4,629.47 and 1,938.39

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Solution

The fourth proportional to 3,354.77, 4,629.47 and 1,938.39 is: 2,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.77 : 4,629.47 = 1,938.39 : x
  2. Step 2: Convert to fraction form
    3,354.77/4,629.47 = 1,938.39/x
  3. Step 3: Cross multiply
    3,354.77x = 4,629.47 × 1,938.39
  4. Step 4: Simplify right side
    3,354.77x = 8,973,708.66
  5. Step 5: Solve for x
    x = 8,973,708.66/3,354.77
  6. Step 6: Final answer
    x = 2,674.91

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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.