Home / 4,263.01-6,389.51-1,628.78

Finding the Fourth Proportional to 4,263.01, 6,389.51 and 1,628.78

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Solution

The fourth proportional to 4,263.01, 6,389.51 and 1,628.78 is: 2,441.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,263.01 : 6,389.51 = 1,628.78 : x
  2. Step 2: Convert to fraction form
    4,263.01/6,389.51 = 1,628.78/x
  3. Step 3: Cross multiply
    4,263.01x = 6,389.51 × 1,628.78
  4. Step 4: Simplify right side
    4,263.01x = 10,407,066.01
  5. Step 5: Solve for x
    x = 10,407,066.01/4,263.01
  6. Step 6: Final answer
    x = 2,441.25

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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.