Home / 4,878.18-6,733.68-2,889.42

Finding the Fourth Proportional to 4,878.18, 6,733.68 and 2,889.42

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Solution

The fourth proportional to 4,878.18, 6,733.68 and 2,889.42 is: 3,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.18 : 6,733.68 = 2,889.42 : x
  2. Step 2: Convert to fraction form
    4,878.18/6,733.68 = 2,889.42/x
  3. Step 3: Cross multiply
    4,878.18x = 6,733.68 × 2,889.42
  4. Step 4: Simplify right side
    4,878.18x = 19,456,429.67
  5. Step 5: Solve for x
    x = 19,456,429.67/4,878.18
  6. Step 6: Final answer
    x = 3,988.46

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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.