Home / 4,309.03-6,464.48-1,387.56

Finding the Fourth Proportional to 4,309.03, 6,464.48 and 1,387.56

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Solution

The fourth proportional to 4,309.03, 6,464.48 and 1,387.56 is: 2,081.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.03 : 6,464.48 = 1,387.56 : x
  2. Step 2: Convert to fraction form
    4,309.03/6,464.48 = 1,387.56/x
  3. Step 3: Cross multiply
    4,309.03x = 6,464.48 × 1,387.56
  4. Step 4: Simplify right side
    4,309.03x = 8,969,871.17
  5. Step 5: Solve for x
    x = 8,969,871.17/4,309.03
  6. Step 6: Final answer
    x = 2,081.64

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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.