Home / 7,078.08-10,605.49-4,305.55

Finding the Fourth Proportional to 7,078.08, 10,605.49 and 4,305.55

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Solution

The fourth proportional to 7,078.08, 10,605.49 and 4,305.55 is: 6,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.08 : 10,605.49 = 4,305.55 : x
  2. Step 2: Convert to fraction form
    7,078.08/10,605.49 = 4,305.55/x
  3. Step 3: Cross multiply
    7,078.08x = 10,605.49 × 4,305.55
  4. Step 4: Simplify right side
    7,078.08x = 45,662,467.47
  5. Step 5: Solve for x
    x = 45,662,467.47/7,078.08
  6. Step 6: Final answer
    x = 6,451.25

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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.