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Finding the Fourth Proportional to 6,308.16, 8,703.92 and 3,655.40

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Solution

The fourth proportional to 6,308.16, 8,703.92 and 3,655.40 is: 5,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.16 : 8,703.92 = 3,655.40 : x
  2. Step 2: Convert to fraction form
    6,308.16/8,703.92 = 3,655.40/x
  3. Step 3: Cross multiply
    6,308.16x = 8,703.92 × 3,655.40
  4. Step 4: Simplify right side
    6,308.16x = 31,816,309.17
  5. Step 5: Solve for x
    x = 31,816,309.17/6,308.16
  6. Step 6: Final answer
    x = 5,043.68

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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.