Home / 1,682.10-2,320.04-1,122.39

Finding the Fourth Proportional to 1,682.10, 2,320.04 and 1,122.39

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Solution

The fourth proportional to 1,682.10, 2,320.04 and 1,122.39 is: 1,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.10 : 2,320.04 = 1,122.39 : x
  2. Step 2: Convert to fraction form
    1,682.10/2,320.04 = 1,122.39/x
  3. Step 3: Cross multiply
    1,682.10x = 2,320.04 × 1,122.39
  4. Step 4: Simplify right side
    1,682.10x = 2,603,992.50
  5. Step 5: Solve for x
    x = 2,603,992.50/1,682.10
  6. Step 6: Final answer
    x = 1,548.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.