Home / 4,974.48-6,865.16-2,878.61

Finding the Fourth Proportional to 4,974.48, 6,865.16 and 2,878.61

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Solution

The fourth proportional to 4,974.48, 6,865.16 and 2,878.61 is: 3,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.48 : 6,865.16 = 2,878.61 : x
  2. Step 2: Convert to fraction form
    4,974.48/6,865.16 = 2,878.61/x
  3. Step 3: Cross multiply
    4,974.48x = 6,865.16 × 2,878.61
  4. Step 4: Simplify right side
    4,974.48x = 19,762,069.51
  5. Step 5: Solve for x
    x = 19,762,069.51/4,974.48
  6. Step 6: Final answer
    x = 3,972.69

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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.