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Finding the Fourth Proportional to 6,308.34, 8,703.61 and 3,655.65

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Solution

The fourth proportional to 6,308.34, 8,703.61 and 3,655.65 is: 5,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.34 : 8,703.61 = 3,655.65 : x
  2. Step 2: Convert to fraction form
    6,308.34/8,703.61 = 3,655.65/x
  3. Step 3: Cross multiply
    6,308.34x = 8,703.61 × 3,655.65
  4. Step 4: Simplify right side
    6,308.34x = 31,817,351.90
  5. Step 5: Solve for x
    x = 31,817,351.90/6,308.34
  6. Step 6: Final answer
    x = 5,043.70

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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.