Home / 4,920.83-6,788.60-3,127.35

Finding the Fourth Proportional to 4,920.83, 6,788.60 and 3,127.35

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Solution

The fourth proportional to 4,920.83, 6,788.60 and 3,127.35 is: 4,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.83 : 6,788.60 = 3,127.35 : x
  2. Step 2: Convert to fraction form
    4,920.83/6,788.60 = 3,127.35/x
  3. Step 3: Cross multiply
    4,920.83x = 6,788.60 × 3,127.35
  4. Step 4: Simplify right side
    4,920.83x = 21,230,331.74
  5. Step 5: Solve for x
    x = 21,230,331.74/4,920.83
  6. Step 6: Final answer
    x = 4,314.38

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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.