Home / 6,921.07-10,381.64-1,726.95

Finding the Fourth Proportional to 6,921.07, 10,381.64 and 1,726.95

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Solution

The fourth proportional to 6,921.07, 10,381.64 and 1,726.95 is: 2,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.07 : 10,381.64 = 1,726.95 : x
  2. Step 2: Convert to fraction form
    6,921.07/10,381.64 = 1,726.95/x
  3. Step 3: Cross multiply
    6,921.07x = 10,381.64 × 1,726.95
  4. Step 4: Simplify right side
    6,921.07x = 17,928,530.47
  5. Step 5: Solve for x
    x = 17,928,530.47/6,921.07
  6. Step 6: Final answer
    x = 2,590.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.