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Finding the Fourth Proportional to 6,326.28, 8,730.68 and 5,480.64

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Solution

The fourth proportional to 6,326.28, 8,730.68 and 5,480.64 is: 7,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.28 : 8,730.68 = 5,480.64 : x
  2. Step 2: Convert to fraction form
    6,326.28/8,730.68 = 5,480.64/x
  3. Step 3: Cross multiply
    6,326.28x = 8,730.68 × 5,480.64
  4. Step 4: Simplify right side
    6,326.28x = 47,849,714.04
  5. Step 5: Solve for x
    x = 47,849,714.04/6,326.28
  6. Step 6: Final answer
    x = 7,563.64

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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.