Home / 4,309.36-6,464.04-1,387.72

Finding the Fourth Proportional to 4,309.36, 6,464.04 and 1,387.72

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Solution

The fourth proportional to 4,309.36, 6,464.04 and 1,387.72 is: 2,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.36 : 6,464.04 = 1,387.72 : x
  2. Step 2: Convert to fraction form
    4,309.36/6,464.04 = 1,387.72/x
  3. Step 3: Cross multiply
    4,309.36x = 6,464.04 × 1,387.72
  4. Step 4: Simplify right side
    4,309.36x = 8,970,277.59
  5. Step 5: Solve for x
    x = 8,970,277.59/4,309.36
  6. Step 6: Final answer
    x = 2,081.58

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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.