Home / 4,810.27-6,639.28-2,821.47

Finding the Fourth Proportional to 4,810.27, 6,639.28 and 2,821.47

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Solution

The fourth proportional to 4,810.27, 6,639.28 and 2,821.47 is: 3,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.27 : 6,639.28 = 2,821.47 : x
  2. Step 2: Convert to fraction form
    4,810.27/6,639.28 = 2,821.47/x
  3. Step 3: Cross multiply
    4,810.27x = 6,639.28 × 2,821.47
  4. Step 4: Simplify right side
    4,810.27x = 18,732,512.74
  5. Step 5: Solve for x
    x = 18,732,512.74/4,810.27
  6. Step 6: Final answer
    x = 3,894.27

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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.