Home / 1,942.65-2,909.93-1,455.03

Finding the Fourth Proportional to 1,942.65, 2,909.93 and 1,455.03

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Solution

The fourth proportional to 1,942.65, 2,909.93 and 1,455.03 is: 2,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.65 : 2,909.93 = 1,455.03 : x
  2. Step 2: Convert to fraction form
    1,942.65/2,909.93 = 1,455.03/x
  3. Step 3: Cross multiply
    1,942.65x = 2,909.93 × 1,455.03
  4. Step 4: Simplify right side
    1,942.65x = 4,234,028.17
  5. Step 5: Solve for x
    x = 4,234,028.17/1,942.65
  6. Step 6: Final answer
    x = 2,179.51

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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.