Home / 7,726.50-10,662.59-4,890.92

Finding the Fourth Proportional to 7,726.50, 10,662.59 and 4,890.92

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Solution

The fourth proportional to 7,726.50, 10,662.59 and 4,890.92 is: 6,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.50 : 10,662.59 = 4,890.92 : x
  2. Step 2: Convert to fraction form
    7,726.50/10,662.59 = 4,890.92/x
  3. Step 3: Cross multiply
    7,726.50x = 10,662.59 × 4,890.92
  4. Step 4: Simplify right side
    7,726.50x = 52,149,796.92
  5. Step 5: Solve for x
    x = 52,149,796.92/7,726.50
  6. Step 6: Final answer
    x = 6,749.47

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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.