Home / 4,679.12-7,015.56-1,866.08

Finding the Fourth Proportional to 4,679.12, 7,015.56 and 1,866.08

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Solution

The fourth proportional to 4,679.12, 7,015.56 and 1,866.08 is: 2,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.12 : 7,015.56 = 1,866.08 : x
  2. Step 2: Convert to fraction form
    4,679.12/7,015.56 = 1,866.08/x
  3. Step 3: Cross multiply
    4,679.12x = 7,015.56 × 1,866.08
  4. Step 4: Simplify right side
    4,679.12x = 13,091,596.20
  5. Step 5: Solve for x
    x = 13,091,596.20/4,679.12
  6. Step 6: Final answer
    x = 2,797.88

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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.