Home / 7,788.80-10,749.84-4,646.72

Finding the Fourth Proportional to 7,788.80, 10,749.84 and 4,646.72

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Solution

The fourth proportional to 7,788.80, 10,749.84 and 4,646.72 is: 6,413.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.80 : 10,749.84 = 4,646.72 : x
  2. Step 2: Convert to fraction form
    7,788.80/10,749.84 = 4,646.72/x
  3. Step 3: Cross multiply
    7,788.80x = 10,749.84 × 4,646.72
  4. Step 4: Simplify right side
    7,788.80x = 49,951,496.52
  5. Step 5: Solve for x
    x = 49,951,496.52/7,788.80
  6. Step 6: Final answer
    x = 6,413.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.