Home / 1,400.36-2,100.56-475.96

Finding the Fourth Proportional to 1,400.36, 2,100.56 and 475.96

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Solution

The fourth proportional to 1,400.36, 2,100.56 and 475.96 is: 713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.36 : 2,100.56 = 475.96 : x
  2. Step 2: Convert to fraction form
    1,400.36/2,100.56 = 475.96/x
  3. Step 3: Cross multiply
    1,400.36x = 2,100.56 × 475.96
  4. Step 4: Simplify right side
    1,400.36x = 999,782.54
  5. Step 5: Solve for x
    x = 999,782.54/1,400.36
  6. Step 6: Final answer
    x = 713.95

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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.