Home / 4,418.40-6,630.58-1,821.28

Finding the Fourth Proportional to 4,418.40, 6,630.58 and 1,821.28

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Solution

The fourth proportional to 4,418.40, 6,630.58 and 1,821.28 is: 2,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418.40 : 6,630.58 = 1,821.28 : x
  2. Step 2: Convert to fraction form
    4,418.40/6,630.58 = 1,821.28/x
  3. Step 3: Cross multiply
    4,418.40x = 6,630.58 × 1,821.28
  4. Step 4: Simplify right side
    4,418.40x = 12,076,142.74
  5. Step 5: Solve for x
    x = 12,076,142.74/4,418.40
  6. Step 6: Final answer
    x = 2,733.15

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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.