Home / 2,154.88-3,232.43-1,113.78

Finding the Fourth Proportional to 2,154.88, 3,232.43 and 1,113.78

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Solution

The fourth proportional to 2,154.88, 3,232.43 and 1,113.78 is: 1,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.88 : 3,232.43 = 1,113.78 : x
  2. Step 2: Convert to fraction form
    2,154.88/3,232.43 = 1,113.78/x
  3. Step 3: Cross multiply
    2,154.88x = 3,232.43 × 1,113.78
  4. Step 4: Simplify right side
    2,154.88x = 3,600,202.47
  5. Step 5: Solve for x
    x = 3,600,202.47/2,154.88
  6. Step 6: Final answer
    x = 1,670.72

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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.