Home / 1,453.32-2,179.75-631.37

Finding the Fourth Proportional to 1,453.32, 2,179.75 and 631.37

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Solution

The fourth proportional to 1,453.32, 2,179.75 and 631.37 is: 946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.32 : 2,179.75 = 631.37 : x
  2. Step 2: Convert to fraction form
    1,453.32/2,179.75 = 631.37/x
  3. Step 3: Cross multiply
    1,453.32x = 2,179.75 × 631.37
  4. Step 4: Simplify right side
    1,453.32x = 1,376,232.63
  5. Step 5: Solve for x
    x = 1,376,232.63/1,453.32
  6. Step 6: Final answer
    x = 946.96

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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.