Home / 2,505.31-3,756.88-1,189.44

Finding the Fourth Proportional to 2,505.31, 3,756.88 and 1,189.44

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Solution

The fourth proportional to 2,505.31, 3,756.88 and 1,189.44 is: 1,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.31 : 3,756.88 = 1,189.44 : x
  2. Step 2: Convert to fraction form
    2,505.31/3,756.88 = 1,189.44/x
  3. Step 3: Cross multiply
    2,505.31x = 3,756.88 × 1,189.44
  4. Step 4: Simplify right side
    2,505.31x = 4,468,598.92
  5. Step 5: Solve for x
    x = 4,468,598.92/2,505.31
  6. Step 6: Final answer
    x = 1,783.65

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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.