Home / 6,687.56-9,228.69-3,854.76

Finding the Fourth Proportional to 6,687.56, 9,228.69 and 3,854.76

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Solution

The fourth proportional to 6,687.56, 9,228.69 and 3,854.76 is: 5,319.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.56 : 9,228.69 = 3,854.76 : x
  2. Step 2: Convert to fraction form
    6,687.56/9,228.69 = 3,854.76/x
  3. Step 3: Cross multiply
    6,687.56x = 9,228.69 × 3,854.76
  4. Step 4: Simplify right side
    6,687.56x = 35,574,385.06
  5. Step 5: Solve for x
    x = 35,574,385.06/6,687.56
  6. Step 6: Final answer
    x = 5,319.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.