Home / 5,617.69-8,427.52-1,919.05

Finding the Fourth Proportional to 5,617.69, 8,427.52 and 1,919.05

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Solution

The fourth proportional to 5,617.69, 8,427.52 and 1,919.05 is: 2,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.69 : 8,427.52 = 1,919.05 : x
  2. Step 2: Convert to fraction form
    5,617.69/8,427.52 = 1,919.05/x
  3. Step 3: Cross multiply
    5,617.69x = 8,427.52 × 1,919.05
  4. Step 4: Simplify right side
    5,617.69x = 16,172,832.26
  5. Step 5: Solve for x
    x = 16,172,832.26/5,617.69
  6. Step 6: Final answer
    x = 2,878.91

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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.