Home / 4,810.28-6,639.72-2,821.52

Finding the Fourth Proportional to 4,810.28, 6,639.72 and 2,821.52

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Solution

The fourth proportional to 4,810.28, 6,639.72 and 2,821.52 is: 3,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.28 : 6,639.72 = 2,821.52 : x
  2. Step 2: Convert to fraction form
    4,810.28/6,639.72 = 2,821.52/x
  3. Step 3: Cross multiply
    4,810.28x = 6,639.72 × 2,821.52
  4. Step 4: Simplify right side
    4,810.28x = 18,734,102.77
  5. Step 5: Solve for x
    x = 18,734,102.77/4,810.28
  6. Step 6: Final answer
    x = 3,894.60

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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.