Home / 7,743.58-10,686.15-4,206.79

Finding the Fourth Proportional to 7,743.58, 10,686.15 and 4,206.79

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Solution

The fourth proportional to 7,743.58, 10,686.15 and 4,206.79 is: 5,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.58 : 10,686.15 = 4,206.79 : x
  2. Step 2: Convert to fraction form
    7,743.58/10,686.15 = 4,206.79/x
  3. Step 3: Cross multiply
    7,743.58x = 10,686.15 × 4,206.79
  4. Step 4: Simplify right side
    7,743.58x = 44,954,378.44
  5. Step 5: Solve for x
    x = 44,954,378.44/7,743.58
  6. Step 6: Final answer
    x = 5,805.38

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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.