Home / 4,911.12-6,775.12-2,920.58

Finding the Fourth Proportional to 4,911.12, 6,775.12 and 2,920.58

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Solution

The fourth proportional to 4,911.12, 6,775.12 and 2,920.58 is: 4,029.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.12 : 6,775.12 = 2,920.58 : x
  2. Step 2: Convert to fraction form
    4,911.12/6,775.12 = 2,920.58/x
  3. Step 3: Cross multiply
    4,911.12x = 6,775.12 × 2,920.58
  4. Step 4: Simplify right side
    4,911.12x = 19,787,279.97
  5. Step 5: Solve for x
    x = 19,787,279.97/4,911.12
  6. Step 6: Final answer
    x = 4,029.08

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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.