Home / 4,984.56-6,877.98-3,121.56

Finding the Fourth Proportional to 4,984.56, 6,877.98 and 3,121.56

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Solution

The fourth proportional to 4,984.56, 6,877.98 and 3,121.56 is: 4,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.56 : 6,877.98 = 3,121.56 : x
  2. Step 2: Convert to fraction form
    4,984.56/6,877.98 = 3,121.56/x
  3. Step 3: Cross multiply
    4,984.56x = 6,877.98 × 3,121.56
  4. Step 4: Simplify right side
    4,984.56x = 21,470,027.25
  5. Step 5: Solve for x
    x = 21,470,027.25/4,984.56
  6. Step 6: Final answer
    x = 4,307.31

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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.