Home / 6,289.38-9,427.86-3,518.40

Finding the Fourth Proportional to 6,289.38, 9,427.86 and 3,518.40

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Solution

The fourth proportional to 6,289.38, 9,427.86 and 3,518.40 is: 5,274.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.38 : 9,427.86 = 3,518.40 : x
  2. Step 2: Convert to fraction form
    6,289.38/9,427.86 = 3,518.40/x
  3. Step 3: Cross multiply
    6,289.38x = 9,427.86 × 3,518.40
  4. Step 4: Simplify right side
    6,289.38x = 33,170,982.62
  5. Step 5: Solve for x
    x = 33,170,982.62/6,289.38
  6. Step 6: Final answer
    x = 5,274.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.