Home / 2,117.85-3,175.60-730.04

Finding the Fourth Proportional to 2,117.85, 3,175.60 and 730.04

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Solution

The fourth proportional to 2,117.85, 3,175.60 and 730.04 is: 1,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.85 : 3,175.60 = 730.04 : x
  2. Step 2: Convert to fraction form
    2,117.85/3,175.60 = 730.04/x
  3. Step 3: Cross multiply
    2,117.85x = 3,175.60 × 730.04
  4. Step 4: Simplify right side
    2,117.85x = 2,318,315.02
  5. Step 5: Solve for x
    x = 2,318,315.02/2,117.85
  6. Step 6: Final answer
    x = 1,094.65

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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.