Home / 3,438.90-4,751.19-3,176.46

Finding the Fourth Proportional to 3,438.90, 4,751.19 and 3,176.46

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Solution

The fourth proportional to 3,438.90, 4,751.19 and 3,176.46 is: 4,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.90 : 4,751.19 = 3,176.46 : x
  2. Step 2: Convert to fraction form
    3,438.90/4,751.19 = 3,176.46/x
  3. Step 3: Cross multiply
    3,438.90x = 4,751.19 × 3,176.46
  4. Step 4: Simplify right side
    3,438.90x = 15,091,964.99
  5. Step 5: Solve for x
    x = 15,091,964.99/3,438.90
  6. Step 6: Final answer
    x = 4,388.60

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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.