Home / 4,689.41-7,030.64-2,840.09

Finding the Fourth Proportional to 4,689.41, 7,030.64 and 2,840.09

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Solution

The fourth proportional to 4,689.41, 7,030.64 and 2,840.09 is: 4,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.41 : 7,030.64 = 2,840.09 : x
  2. Step 2: Convert to fraction form
    4,689.41/7,030.64 = 2,840.09/x
  3. Step 3: Cross multiply
    4,689.41x = 7,030.64 × 2,840.09
  4. Step 4: Simplify right side
    4,689.41x = 19,967,650.36
  5. Step 5: Solve for x
    x = 19,967,650.36/4,689.41
  6. Step 6: Final answer
    x = 4,258.03

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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.