Home / 3,235.90-4,465.12-1,909.39

Finding the Fourth Proportional to 3,235.90, 4,465.12 and 1,909.39

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Solution

The fourth proportional to 3,235.90, 4,465.12 and 1,909.39 is: 2,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.90 : 4,465.12 = 1,909.39 : x
  2. Step 2: Convert to fraction form
    3,235.90/4,465.12 = 1,909.39/x
  3. Step 3: Cross multiply
    3,235.90x = 4,465.12 × 1,909.39
  4. Step 4: Simplify right side
    3,235.90x = 8,525,655.48
  5. Step 5: Solve for x
    x = 8,525,655.48/3,235.90
  6. Step 6: Final answer
    x = 2,634.71

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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.