Home / 1,962.10-2,942.12-1,036.90

Finding the Fourth Proportional to 1,962.10, 2,942.12 and 1,036.90

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Solution

The fourth proportional to 1,962.10, 2,942.12 and 1,036.90 is: 1,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.10 : 2,942.12 = 1,036.90 : x
  2. Step 2: Convert to fraction form
    1,962.10/2,942.12 = 1,036.90/x
  3. Step 3: Cross multiply
    1,962.10x = 2,942.12 × 1,036.90
  4. Step 4: Simplify right side
    1,962.10x = 3,050,684.23
  5. Step 5: Solve for x
    x = 3,050,684.23/1,962.10
  6. Step 6: Final answer
    x = 1,554.81

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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.