Home / 2,179.62-3,007.85-1,184.90

Finding the Fourth Proportional to 2,179.62, 3,007.85 and 1,184.90

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Solution

The fourth proportional to 2,179.62, 3,007.85 and 1,184.90 is: 1,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.62 : 3,007.85 = 1,184.90 : x
  2. Step 2: Convert to fraction form
    2,179.62/3,007.85 = 1,184.90/x
  3. Step 3: Cross multiply
    2,179.62x = 3,007.85 × 1,184.90
  4. Step 4: Simplify right side
    2,179.62x = 3,563,980.50
  5. Step 5: Solve for x
    x = 3,563,980.50/2,179.62
  6. Step 6: Final answer
    x = 1,635.14

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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.