Home / 4,520.48-6,781.98-2,790.32

Finding the Fourth Proportional to 4,520.48, 6,781.98 and 2,790.32

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Solution

The fourth proportional to 4,520.48, 6,781.98 and 2,790.32 is: 4,186.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.48 : 6,781.98 = 2,790.32 : x
  2. Step 2: Convert to fraction form
    4,520.48/6,781.98 = 2,790.32/x
  3. Step 3: Cross multiply
    4,520.48x = 6,781.98 × 2,790.32
  4. Step 4: Simplify right side
    4,520.48x = 18,923,894.43
  5. Step 5: Solve for x
    x = 18,923,894.43/4,520.48
  6. Step 6: Final answer
    x = 4,186.26

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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.