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Finding the Fourth Proportional to 6,304.80, 8,700 and 4,813.68

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Solution

The fourth proportional to 6,304.80, 8,700 and 4,813.68 is: 6,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,304.80 : 8,700 = 4,813.68 : x
  2. Step 2: Convert to fraction form
    6,304.80/8,700 = 4,813.68/x
  3. Step 3: Cross multiply
    6,304.80x = 8,700 × 4,813.68
  4. Step 4: Simplify right side
    6,304.80x = 41,879,016
  5. Step 5: Solve for x
    x = 41,879,016/6,304.80
  6. Step 6: Final answer
    x = 6,642.40

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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.