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Finding the Fourth Proportional to 4,999.56, 6,928.59 and 4,929.09

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Solution

The fourth proportional to 4,999.56, 6,928.59 and 4,929.09 is: 6,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.56 : 6,928.59 = 4,929.09 : x
  2. Step 2: Convert to fraction form
    4,999.56/6,928.59 = 4,929.09/x
  3. Step 3: Cross multiply
    4,999.56x = 6,928.59 × 4,929.09
  4. Step 4: Simplify right side
    4,999.56x = 34,151,643.68
  5. Step 5: Solve for x
    x = 34,151,643.68/4,999.56
  6. Step 6: Final answer
    x = 6,830.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.