Home / 6,918.98-10,378.49-1,724.85

Finding the Fourth Proportional to 6,918.98, 10,378.49 and 1,724.85

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Solution

The fourth proportional to 6,918.98, 10,378.49 and 1,724.85 is: 2,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.98 : 10,378.49 = 1,724.85 : x
  2. Step 2: Convert to fraction form
    6,918.98/10,378.49 = 1,724.85/x
  3. Step 3: Cross multiply
    6,918.98x = 10,378.49 × 1,724.85
  4. Step 4: Simplify right side
    6,918.98x = 17,901,329.85
  5. Step 5: Solve for x
    x = 17,901,329.85/6,918.98
  6. Step 6: Final answer
    x = 2,587.28

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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.