Home / 1,453.46-2,181.06-631.76

Finding the Fourth Proportional to 1,453.46, 2,181.06 and 631.76

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Solution

The fourth proportional to 1,453.46, 2,181.06 and 631.76 is: 948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.46 : 2,181.06 = 631.76 : x
  2. Step 2: Convert to fraction form
    1,453.46/2,181.06 = 631.76/x
  3. Step 3: Cross multiply
    1,453.46x = 2,181.06 × 631.76
  4. Step 4: Simplify right side
    1,453.46x = 1,377,895.56
  5. Step 5: Solve for x
    x = 1,377,895.56/1,453.46
  6. Step 6: Final answer
    x = 948.01

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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.