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Finding the Fourth Proportional to 4,453.75, 6,686.08 and 4,277.57

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Solution

The fourth proportional to 4,453.75, 6,686.08 and 4,277.57 is: 6,421.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,453.75 : 6,686.08 = 4,277.57 : x
  2. Step 2: Convert to fraction form
    4,453.75/6,686.08 = 4,277.57/x
  3. Step 3: Cross multiply
    4,453.75x = 6,686.08 × 4,277.57
  4. Step 4: Simplify right side
    4,453.75x = 28,600,131.10
  5. Step 5: Solve for x
    x = 28,600,131.10/4,453.75
  6. Step 6: Final answer
    x = 6,421.59

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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.