Home / 7,778.40-10,734.48-4,634.88

Finding the Fourth Proportional to 7,778.40, 10,734.48 and 4,634.88

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Solution

The fourth proportional to 7,778.40, 10,734.48 and 4,634.88 is: 6,396.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.40 : 10,734.48 = 4,634.88 : x
  2. Step 2: Convert to fraction form
    7,778.40/10,734.48 = 4,634.88/x
  3. Step 3: Cross multiply
    7,778.40x = 10,734.48 × 4,634.88
  4. Step 4: Simplify right side
    7,778.40x = 49,753,026.66
  5. Step 5: Solve for x
    x = 49,753,026.66/7,778.40
  6. Step 6: Final answer
    x = 6,396.31

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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.