Home / 4,974-6,864.16-2,878.48

Finding the Fourth Proportional to 4,974, 6,864.16 and 2,878.48

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Solution

The fourth proportional to 4,974, 6,864.16 and 2,878.48 is: 3,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974 : 6,864.16 = 2,878.48 : x
  2. Step 2: Convert to fraction form
    4,974/6,864.16 = 2,878.48/x
  3. Step 3: Cross multiply
    4,974x = 6,864.16 × 2,878.48
  4. Step 4: Simplify right side
    4,974x = 19,758,347.28
  5. Step 5: Solve for x
    x = 19,758,347.28/4,974
  6. Step 6: Final answer
    x = 3,972.33

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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.