Home / 4,970.89-6,860.46-2,874.61

Finding the Fourth Proportional to 4,970.89, 6,860.46 and 2,874.61

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Solution

The fourth proportional to 4,970.89, 6,860.46 and 2,874.61 is: 3,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.89 : 6,860.46 = 2,874.61 : x
  2. Step 2: Convert to fraction form
    4,970.89/6,860.46 = 2,874.61/x
  3. Step 3: Cross multiply
    4,970.89x = 6,860.46 × 2,874.61
  4. Step 4: Simplify right side
    4,970.89x = 19,721,146.92
  5. Step 5: Solve for x
    x = 19,721,146.92/4,970.89
  6. Step 6: Final answer
    x = 3,967.33

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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.