Home / 3,030.27-4,179.87-1,909.26

Finding the Fourth Proportional to 3,030.27, 4,179.87 and 1,909.26

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Solution

The fourth proportional to 3,030.27, 4,179.87 and 1,909.26 is: 2,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.27 : 4,179.87 = 1,909.26 : x
  2. Step 2: Convert to fraction form
    3,030.27/4,179.87 = 1,909.26/x
  3. Step 3: Cross multiply
    3,030.27x = 4,179.87 × 1,909.26
  4. Step 4: Simplify right side
    3,030.27x = 7,980,458.60
  5. Step 5: Solve for x
    x = 7,980,458.60/3,030.27
  6. Step 6: Final answer
    x = 2,633.58

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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.