Home / 5,223.72-7,815.95-3,666.77

Finding the Fourth Proportional to 5,223.72, 7,815.95 and 3,666.77

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Solution

The fourth proportional to 5,223.72, 7,815.95 and 3,666.77 is: 5,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.72 : 7,815.95 = 3,666.77 : x
  2. Step 2: Convert to fraction form
    5,223.72/7,815.95 = 3,666.77/x
  3. Step 3: Cross multiply
    5,223.72x = 7,815.95 × 3,666.77
  4. Step 4: Simplify right side
    5,223.72x = 28,659,290.98
  5. Step 5: Solve for x
    x = 28,659,290.98/5,223.72
  6. Step 6: Final answer
    x = 5,486.38

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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.