Home / 4,890.72-6,750.48-3,029.28

Finding the Fourth Proportional to 4,890.72, 6,750.48 and 3,029.28

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Solution

The fourth proportional to 4,890.72, 6,750.48 and 3,029.28 is: 4,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.72 : 6,750.48 = 3,029.28 : x
  2. Step 2: Convert to fraction form
    4,890.72/6,750.48 = 3,029.28/x
  3. Step 3: Cross multiply
    4,890.72x = 6,750.48 × 3,029.28
  4. Step 4: Simplify right side
    4,890.72x = 20,449,094.05
  5. Step 5: Solve for x
    x = 20,449,094.05/4,890.72
  6. Step 6: Final answer
    x = 4,181.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.