Home / 7,726.12-10,662.05-4,189.34

Finding the Fourth Proportional to 7,726.12, 10,662.05 and 4,189.34

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Solution

The fourth proportional to 7,726.12, 10,662.05 and 4,189.34 is: 5,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.12 : 10,662.05 = 4,189.34 : x
  2. Step 2: Convert to fraction form
    7,726.12/10,662.05 = 4,189.34/x
  3. Step 3: Cross multiply
    7,726.12x = 10,662.05 × 4,189.34
  4. Step 4: Simplify right side
    7,726.12x = 44,666,931.60
  5. Step 5: Solve for x
    x = 44,666,931.60/7,726.12
  6. Step 6: Final answer
    x = 5,781.29

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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.