Home / 2,860.11-4,284.72-1,628.37

Finding the Fourth Proportional to 2,860.11, 4,284.72 and 1,628.37

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Solution

The fourth proportional to 2,860.11, 4,284.72 and 1,628.37 is: 2,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.11 : 4,284.72 = 1,628.37 : x
  2. Step 2: Convert to fraction form
    2,860.11/4,284.72 = 1,628.37/x
  3. Step 3: Cross multiply
    2,860.11x = 4,284.72 × 1,628.37
  4. Step 4: Simplify right side
    2,860.11x = 6,977,109.51
  5. Step 5: Solve for x
    x = 6,977,109.51/2,860.11
  6. Step 6: Final answer
    x = 2,439.45

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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.