Home / 4,275.60-6,413.40-1,809.78

Finding the Fourth Proportional to 4,275.60, 6,413.40 and 1,809.78

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Solution

The fourth proportional to 4,275.60, 6,413.40 and 1,809.78 is: 2,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275.60 : 6,413.40 = 1,809.78 : x
  2. Step 2: Convert to fraction form
    4,275.60/6,413.40 = 1,809.78/x
  3. Step 3: Cross multiply
    4,275.60x = 6,413.40 × 1,809.78
  4. Step 4: Simplify right side
    4,275.60x = 11,606,843.05
  5. Step 5: Solve for x
    x = 11,606,843.05/4,275.60
  6. Step 6: Final answer
    x = 2,714.67

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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.