Home / 4,230.19-6,345.89-1,308.72

Finding the Fourth Proportional to 4,230.19, 6,345.89 and 1,308.72

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Solution

The fourth proportional to 4,230.19, 6,345.89 and 1,308.72 is: 1,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.19 : 6,345.89 = 1,308.72 : x
  2. Step 2: Convert to fraction form
    4,230.19/6,345.89 = 1,308.72/x
  3. Step 3: Cross multiply
    4,230.19x = 6,345.89 × 1,308.72
  4. Step 4: Simplify right side
    4,230.19x = 8,304,986.62
  5. Step 5: Solve for x
    x = 8,304,986.62/4,230.19
  6. Step 6: Final answer
    x = 1,963.27

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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.