Home / 4,909.56-6,775.44-2,813.68

Finding the Fourth Proportional to 4,909.56, 6,775.44 and 2,813.68

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Solution

The fourth proportional to 4,909.56, 6,775.44 and 2,813.68 is: 3,883.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.56 : 6,775.44 = 2,813.68 : x
  2. Step 2: Convert to fraction form
    4,909.56/6,775.44 = 2,813.68/x
  3. Step 3: Cross multiply
    4,909.56x = 6,775.44 × 2,813.68
  4. Step 4: Simplify right side
    4,909.56x = 19,063,920.02
  5. Step 5: Solve for x
    x = 19,063,920.02/4,909.56
  6. Step 6: Final answer
    x = 3,883.02

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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.