Home / 6,453.36-9,678.96-2,556.72

Finding the Fourth Proportional to 6,453.36, 9,678.96 and 2,556.72

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Solution

The fourth proportional to 6,453.36, 9,678.96 and 2,556.72 is: 3,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.36 : 9,678.96 = 2,556.72 : x
  2. Step 2: Convert to fraction form
    6,453.36/9,678.96 = 2,556.72/x
  3. Step 3: Cross multiply
    6,453.36x = 9,678.96 × 2,556.72
  4. Step 4: Simplify right side
    6,453.36x = 24,746,390.61
  5. Step 5: Solve for x
    x = 24,746,390.61/6,453.36
  6. Step 6: Final answer
    x = 3,834.65

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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.