Home / 4,920.62-6,788.75-3,153.20

Finding the Fourth Proportional to 4,920.62, 6,788.75 and 3,153.20

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Solution

The fourth proportional to 4,920.62, 6,788.75 and 3,153.20 is: 4,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.62 : 6,788.75 = 3,153.20 : x
  2. Step 2: Convert to fraction form
    4,920.62/6,788.75 = 3,153.20/x
  3. Step 3: Cross multiply
    4,920.62x = 6,788.75 × 3,153.20
  4. Step 4: Simplify right side
    4,920.62x = 21,406,236.79
  5. Step 5: Solve for x
    x = 21,406,236.79/4,920.62
  6. Step 6: Final answer
    x = 4,350.32

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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.