Home / 2,509.18-3,763.65-1,191.97

Finding the Fourth Proportional to 2,509.18, 3,763.65 and 1,191.97

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Solution

The fourth proportional to 2,509.18, 3,763.65 and 1,191.97 is: 1,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.18 : 3,763.65 = 1,191.97 : x
  2. Step 2: Convert to fraction form
    2,509.18/3,763.65 = 1,191.97/x
  3. Step 3: Cross multiply
    2,509.18x = 3,763.65 × 1,191.97
  4. Step 4: Simplify right side
    2,509.18x = 4,486,157.89
  5. Step 5: Solve for x
    x = 4,486,157.89/2,509.18
  6. Step 6: Final answer
    x = 1,787.90

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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.