Home / 4,878.78-6,733.77-3,085.12

Finding the Fourth Proportional to 4,878.78, 6,733.77 and 3,085.12

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Solution

The fourth proportional to 4,878.78, 6,733.77 and 3,085.12 is: 4,258.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.78 : 6,733.77 = 3,085.12 : x
  2. Step 2: Convert to fraction form
    4,878.78/6,733.77 = 3,085.12/x
  3. Step 3: Cross multiply
    4,878.78x = 6,733.77 × 3,085.12
  4. Step 4: Simplify right side
    4,878.78x = 20,774,488.50
  5. Step 5: Solve for x
    x = 20,774,488.50/4,878.78
  6. Step 6: Final answer
    x = 4,258.14

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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.