Home / 7,726.79-10,662.84-4,189.93

Finding the Fourth Proportional to 7,726.79, 10,662.84 and 4,189.93

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Solution

The fourth proportional to 7,726.79, 10,662.84 and 4,189.93 is: 5,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.79 : 10,662.84 = 4,189.93 : x
  2. Step 2: Convert to fraction form
    7,726.79/10,662.84 = 4,189.93/x
  3. Step 3: Cross multiply
    7,726.79x = 10,662.84 × 4,189.93
  4. Step 4: Simplify right side
    7,726.79x = 44,676,526.54
  5. Step 5: Solve for x
    x = 44,676,526.54/7,726.79
  6. Step 6: Final answer
    x = 5,782.03

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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.