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Finding the Fourth Proportional to 6,687.81, 10,030.95 and 1,757.95

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Solution

The fourth proportional to 6,687.81, 10,030.95 and 1,757.95 is: 2,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.81 : 10,030.95 = 1,757.95 : x
  2. Step 2: Convert to fraction form
    6,687.81/10,030.95 = 1,757.95/x
  3. Step 3: Cross multiply
    6,687.81x = 10,030.95 × 1,757.95
  4. Step 4: Simplify right side
    6,687.81x = 17,633,883.48
  5. Step 5: Solve for x
    x = 17,633,883.48/6,687.81
  6. Step 6: Final answer
    x = 2,636.72

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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.