Home / 4,308.88-6,464.58-1,387.12

Finding the Fourth Proportional to 4,308.88, 6,464.58 and 1,387.12

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Solution

The fourth proportional to 4,308.88, 6,464.58 and 1,387.12 is: 2,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.88 : 6,464.58 = 1,387.12 : x
  2. Step 2: Convert to fraction form
    4,308.88/6,464.58 = 1,387.12/x
  3. Step 3: Cross multiply
    4,308.88x = 6,464.58 × 1,387.12
  4. Step 4: Simplify right side
    4,308.88x = 8,967,148.21
  5. Step 5: Solve for x
    x = 8,967,148.21/4,308.88
  6. Step 6: Final answer
    x = 2,081.09

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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.