Home / 6,920.32-10,380.16-1,726.24

Finding the Fourth Proportional to 6,920.32, 10,380.16 and 1,726.24

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Solution

The fourth proportional to 6,920.32, 10,380.16 and 1,726.24 is: 2,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.32 : 10,380.16 = 1,726.24 : x
  2. Step 2: Convert to fraction form
    6,920.32/10,380.16 = 1,726.24/x
  3. Step 3: Cross multiply
    6,920.32x = 10,380.16 × 1,726.24
  4. Step 4: Simplify right side
    6,920.32x = 17,918,647.40
  5. Step 5: Solve for x
    x = 17,918,647.40/6,920.32
  6. Step 6: Final answer
    x = 2,589.28

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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.