Home / 7,135.69-10,703.44-2,455.78

Finding the Fourth Proportional to 7,135.69, 10,703.44 and 2,455.78

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Solution

The fourth proportional to 7,135.69, 10,703.44 and 2,455.78 is: 3,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.69 : 10,703.44 = 2,455.78 : x
  2. Step 2: Convert to fraction form
    7,135.69/10,703.44 = 2,455.78/x
  3. Step 3: Cross multiply
    7,135.69x = 10,703.44 × 2,455.78
  4. Step 4: Simplify right side
    7,135.69x = 26,285,293.88
  5. Step 5: Solve for x
    x = 26,285,293.88/7,135.69
  6. Step 6: Final answer
    x = 3,683.64

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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.