Home / 2,928.66-4,390.56-2,048.64

Finding the Fourth Proportional to 2,928.66, 4,390.56 and 2,048.64

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Solution

The fourth proportional to 2,928.66, 4,390.56 and 2,048.64 is: 3,071.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.66 : 4,390.56 = 2,048.64 : x
  2. Step 2: Convert to fraction form
    2,928.66/4,390.56 = 2,048.64/x
  3. Step 3: Cross multiply
    2,928.66x = 4,390.56 × 2,048.64
  4. Step 4: Simplify right side
    2,928.66x = 8,994,676.84
  5. Step 5: Solve for x
    x = 8,994,676.84/2,928.66
  6. Step 6: Final answer
    x = 3,071.26

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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.