Home / 5,617.75-8,427.61-1,919.11

Finding the Fourth Proportional to 5,617.75, 8,427.61 and 1,919.11

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Solution

The fourth proportional to 5,617.75, 8,427.61 and 1,919.11 is: 2,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.75 : 8,427.61 = 1,919.11 : x
  2. Step 2: Convert to fraction form
    5,617.75/8,427.61 = 1,919.11/x
  3. Step 3: Cross multiply
    5,617.75x = 8,427.61 × 1,919.11
  4. Step 4: Simplify right side
    5,617.75x = 16,173,510.63
  5. Step 5: Solve for x
    x = 16,173,510.63/5,617.75
  6. Step 6: Final answer
    x = 2,879.00

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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.