Home / 3,478.85-4,801.26-1,986.42

Finding the Fourth Proportional to 3,478.85, 4,801.26 and 1,986.42

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Solution

The fourth proportional to 3,478.85, 4,801.26 and 1,986.42 is: 2,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.85 : 4,801.26 = 1,986.42 : x
  2. Step 2: Convert to fraction form
    3,478.85/4,801.26 = 1,986.42/x
  3. Step 3: Cross multiply
    3,478.85x = 4,801.26 × 1,986.42
  4. Step 4: Simplify right side
    3,478.85x = 9,537,318.89
  5. Step 5: Solve for x
    x = 9,537,318.89/3,478.85
  6. Step 6: Final answer
    x = 2,741.52

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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.