Home / 4,078.80-5,615.60-3,477.38

Finding the Fourth Proportional to 4,078.80, 5,615.60 and 3,477.38

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Solution

The fourth proportional to 4,078.80, 5,615.60 and 3,477.38 is: 4,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.80 : 5,615.60 = 3,477.38 : x
  2. Step 2: Convert to fraction form
    4,078.80/5,615.60 = 3,477.38/x
  3. Step 3: Cross multiply
    4,078.80x = 5,615.60 × 3,477.38
  4. Step 4: Simplify right side
    4,078.80x = 19,527,575.13
  5. Step 5: Solve for x
    x = 19,527,575.13/4,078.80
  6. Step 6: Final answer
    x = 4,787.58

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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.