Home / 2,109.42-3,160.68-1,492.08

Finding the Fourth Proportional to 2,109.42, 3,160.68 and 1,492.08

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Solution

The fourth proportional to 2,109.42, 3,160.68 and 1,492.08 is: 2,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.42 : 3,160.68 = 1,492.08 : x
  2. Step 2: Convert to fraction form
    2,109.42/3,160.68 = 1,492.08/x
  3. Step 3: Cross multiply
    2,109.42x = 3,160.68 × 1,492.08
  4. Step 4: Simplify right side
    2,109.42x = 4,715,987.41
  5. Step 5: Solve for x
    x = 4,715,987.41/2,109.42
  6. Step 6: Final answer
    x = 2,235.68

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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.