Home / 4,974.42-6,864.30-2,878.68

Finding the Fourth Proportional to 4,974.42, 6,864.30 and 2,878.68

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Solution

The fourth proportional to 4,974.42, 6,864.30 and 2,878.68 is: 3,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.42 : 6,864.30 = 2,878.68 : x
  2. Step 2: Convert to fraction form
    4,974.42/6,864.30 = 2,878.68/x
  3. Step 3: Cross multiply
    4,974.42x = 6,864.30 × 2,878.68
  4. Step 4: Simplify right side
    4,974.42x = 19,760,123.12
  5. Step 5: Solve for x
    x = 19,760,123.12/4,974.42
  6. Step 6: Final answer
    x = 3,972.35

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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.