Home / 7,726.88-10,663.07-4,190.09

Finding the Fourth Proportional to 7,726.88, 10,663.07 and 4,190.09

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Solution

The fourth proportional to 7,726.88, 10,663.07 and 4,190.09 is: 5,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.88 : 10,663.07 = 4,190.09 : x
  2. Step 2: Convert to fraction form
    7,726.88/10,663.07 = 4,190.09/x
  3. Step 3: Cross multiply
    7,726.88x = 10,663.07 × 4,190.09
  4. Step 4: Simplify right side
    7,726.88x = 44,679,222.98
  5. Step 5: Solve for x
    x = 44,679,222.98/7,726.88
  6. Step 6: Final answer
    x = 5,782.31

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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.