Home / 2,783.90-4,175.86-934.68

Finding the Fourth Proportional to 2,783.90, 4,175.86 and 934.68

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Solution

The fourth proportional to 2,783.90, 4,175.86 and 934.68 is: 1,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.90 : 4,175.86 = 934.68 : x
  2. Step 2: Convert to fraction form
    2,783.90/4,175.86 = 934.68/x
  3. Step 3: Cross multiply
    2,783.90x = 4,175.86 × 934.68
  4. Step 4: Simplify right side
    2,783.90x = 3,903,092.82
  5. Step 5: Solve for x
    x = 3,903,092.82/2,783.90
  6. Step 6: Final answer
    x = 1,402.02

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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.