Home / 6,455.09-9,686.72-2,757.35

Finding the Fourth Proportional to 6,455.09, 9,686.72 and 2,757.35

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Solution

The fourth proportional to 6,455.09, 9,686.72 and 2,757.35 is: 4,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.09 : 9,686.72 = 2,757.35 : x
  2. Step 2: Convert to fraction form
    6,455.09/9,686.72 = 2,757.35/x
  3. Step 3: Cross multiply
    6,455.09x = 9,686.72 × 2,757.35
  4. Step 4: Simplify right side
    6,455.09x = 26,709,615.17
  5. Step 5: Solve for x
    x = 26,709,615.17/6,455.09
  6. Step 6: Final answer
    x = 4,137.76

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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.