Home / 1,450.55-2,175.83-719.95

Finding the Fourth Proportional to 1,450.55, 2,175.83 and 719.95

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Solution

The fourth proportional to 1,450.55, 2,175.83 and 719.95 is: 1,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.55 : 2,175.83 = 719.95 : x
  2. Step 2: Convert to fraction form
    1,450.55/2,175.83 = 719.95/x
  3. Step 3: Cross multiply
    1,450.55x = 2,175.83 × 719.95
  4. Step 4: Simplify right side
    1,450.55x = 1,566,488.81
  5. Step 5: Solve for x
    x = 1,566,488.81/1,450.55
  6. Step 6: Final answer
    x = 1,079.93

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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.