Home / 1,634.30-2,450.55-709.70

Finding the Fourth Proportional to 1,634.30, 2,450.55 and 709.70

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Solution

The fourth proportional to 1,634.30, 2,450.55 and 709.70 is: 1,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.30 : 2,450.55 = 709.70 : x
  2. Step 2: Convert to fraction form
    1,634.30/2,450.55 = 709.70/x
  3. Step 3: Cross multiply
    1,634.30x = 2,450.55 × 709.70
  4. Step 4: Simplify right side
    1,634.30x = 1,739,155.34
  5. Step 5: Solve for x
    x = 1,739,155.34/1,634.30
  6. Step 6: Final answer
    x = 1,064.16

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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.