Home / 5,580.90-8,364.06-4,279.64

Finding the Fourth Proportional to 5,580.90, 8,364.06 and 4,279.64

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Solution

The fourth proportional to 5,580.90, 8,364.06 and 4,279.64 is: 6,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.90 : 8,364.06 = 4,279.64 : x
  2. Step 2: Convert to fraction form
    5,580.90/8,364.06 = 4,279.64/x
  3. Step 3: Cross multiply
    5,580.90x = 8,364.06 × 4,279.64
  4. Step 4: Simplify right side
    5,580.90x = 35,795,123.92
  5. Step 5: Solve for x
    x = 35,795,123.92/5,580.90
  6. Step 6: Final answer
    x = 6,413.86

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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.