Home / 5,645.78-8,473.88-2,874.45

Finding the Fourth Proportional to 5,645.78, 8,473.88 and 2,874.45

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Solution

The fourth proportional to 5,645.78, 8,473.88 and 2,874.45 is: 4,314.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.78 : 8,473.88 = 2,874.45 : x
  2. Step 2: Convert to fraction form
    5,645.78/8,473.88 = 2,874.45/x
  3. Step 3: Cross multiply
    5,645.78x = 8,473.88 × 2,874.45
  4. Step 4: Simplify right side
    5,645.78x = 24,357,783.33
  5. Step 5: Solve for x
    x = 24,357,783.33/5,645.78
  6. Step 6: Final answer
    x = 4,314.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.