Home / 5,385.29-8,069.69-3,623.77

Finding the Fourth Proportional to 5,385.29, 8,069.69 and 3,623.77

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Solution

The fourth proportional to 5,385.29, 8,069.69 and 3,623.77 is: 5,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.29 : 8,069.69 = 3,623.77 : x
  2. Step 2: Convert to fraction form
    5,385.29/8,069.69 = 3,623.77/x
  3. Step 3: Cross multiply
    5,385.29x = 8,069.69 × 3,623.77
  4. Step 4: Simplify right side
    5,385.29x = 29,242,689.42
  5. Step 5: Solve for x
    x = 29,242,689.42/5,385.29
  6. Step 6: Final answer
    x = 5,430.10

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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.