Home / 4,938.75-6,813.55-3,047.05

Finding the Fourth Proportional to 4,938.75, 6,813.55 and 3,047.05

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Solution

The fourth proportional to 4,938.75, 6,813.55 and 3,047.05 is: 4,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.75 : 6,813.55 = 3,047.05 : x
  2. Step 2: Convert to fraction form
    4,938.75/6,813.55 = 3,047.05/x
  3. Step 3: Cross multiply
    4,938.75x = 6,813.55 × 3,047.05
  4. Step 4: Simplify right side
    4,938.75x = 20,761,239.85
  5. Step 5: Solve for x
    x = 20,761,239.85/4,938.75
  6. Step 6: Final answer
    x = 4,203.75

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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.