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Finding the Fourth Proportional to 6,291.56, 9,437.18 and 1,908.84

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Solution

The fourth proportional to 6,291.56, 9,437.18 and 1,908.84 is: 2,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.56 : 9,437.18 = 1,908.84 : x
  2. Step 2: Convert to fraction form
    6,291.56/9,437.18 = 1,908.84/x
  3. Step 3: Cross multiply
    6,291.56x = 9,437.18 × 1,908.84
  4. Step 4: Simplify right side
    6,291.56x = 18,014,066.67
  5. Step 5: Solve for x
    x = 18,014,066.67/6,291.56
  6. Step 6: Final answer
    x = 2,863.21

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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.