Home / 5,623.80-8,435.85-1,728.21

Finding the Fourth Proportional to 5,623.80, 8,435.85 and 1,728.21

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Solution

The fourth proportional to 5,623.80, 8,435.85 and 1,728.21 is: 2,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.80 : 8,435.85 = 1,728.21 : x
  2. Step 2: Convert to fraction form
    5,623.80/8,435.85 = 1,728.21/x
  3. Step 3: Cross multiply
    5,623.80x = 8,435.85 × 1,728.21
  4. Step 4: Simplify right side
    5,623.80x = 14,578,920.33
  5. Step 5: Solve for x
    x = 14,578,920.33/5,623.80
  6. Step 6: Final answer
    x = 2,592.36

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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.