Home / 4,722.12-7,076.70-2,987.64

Finding the Fourth Proportional to 4,722.12, 7,076.70 and 2,987.64

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Solution

The fourth proportional to 4,722.12, 7,076.70 and 2,987.64 is: 4,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.12 : 7,076.70 = 2,987.64 : x
  2. Step 2: Convert to fraction form
    4,722.12/7,076.70 = 2,987.64/x
  3. Step 3: Cross multiply
    4,722.12x = 7,076.70 × 2,987.64
  4. Step 4: Simplify right side
    4,722.12x = 21,142,631.99
  5. Step 5: Solve for x
    x = 21,142,631.99/4,722.12
  6. Step 6: Final answer
    x = 4,477.36

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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.