Home / 1,788.20-2,680.47-633.14

Finding the Fourth Proportional to 1,788.20, 2,680.47 and 633.14

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Solution

The fourth proportional to 1,788.20, 2,680.47 and 633.14 is: 949.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.20 : 2,680.47 = 633.14 : x
  2. Step 2: Convert to fraction form
    1,788.20/2,680.47 = 633.14/x
  3. Step 3: Cross multiply
    1,788.20x = 2,680.47 × 633.14
  4. Step 4: Simplify right side
    1,788.20x = 1,697,112.78
  5. Step 5: Solve for x
    x = 1,697,112.78/1,788.20
  6. Step 6: Final answer
    x = 949.06

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1.5x scale

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.