Home / 4,259.19-6,389.22-1,628.91

Finding the Fourth Proportional to 4,259.19, 6,389.22 and 1,628.91

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Solution

The fourth proportional to 4,259.19, 6,389.22 and 1,628.91 is: 2,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.19 : 6,389.22 = 1,628.91 : x
  2. Step 2: Convert to fraction form
    4,259.19/6,389.22 = 1,628.91/x
  3. Step 3: Cross multiply
    4,259.19x = 6,389.22 × 1,628.91
  4. Step 4: Simplify right side
    4,259.19x = 10,407,464.35
  5. Step 5: Solve for x
    x = 10,407,464.35/4,259.19
  6. Step 6: Final answer
    x = 2,443.53

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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.