Home / 4,810.52-6,639.63-2,821.72

Finding the Fourth Proportional to 4,810.52, 6,639.63 and 2,821.72

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Solution

The fourth proportional to 4,810.52, 6,639.63 and 2,821.72 is: 3,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.52 : 6,639.63 = 2,821.72 : x
  2. Step 2: Convert to fraction form
    4,810.52/6,639.63 = 2,821.72/x
  3. Step 3: Cross multiply
    4,810.52x = 6,639.63 × 2,821.72
  4. Step 4: Simplify right side
    4,810.52x = 18,735,146.06
  5. Step 5: Solve for x
    x = 18,735,146.06/4,810.52
  6. Step 6: Final answer
    x = 3,894.62

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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.