Home / 3,245.74-4,478.80-1,829.40

Finding the Fourth Proportional to 3,245.74, 4,478.80 and 1,829.40

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Solution

The fourth proportional to 3,245.74, 4,478.80 and 1,829.40 is: 2,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.74 : 4,478.80 = 1,829.40 : x
  2. Step 2: Convert to fraction form
    3,245.74/4,478.80 = 1,829.40/x
  3. Step 3: Cross multiply
    3,245.74x = 4,478.80 × 1,829.40
  4. Step 4: Simplify right side
    3,245.74x = 8,193,516.72
  5. Step 5: Solve for x
    x = 8,193,516.72/3,245.74
  6. Step 6: Final answer
    x = 2,524.39

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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.