Home / 1,450.79-2,163.98-1,317.76

Finding the Fourth Proportional to 1,450.79, 2,163.98 and 1,317.76

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Solution

The fourth proportional to 1,450.79, 2,163.98 and 1,317.76 is: 1,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.79 : 2,163.98 = 1,317.76 : x
  2. Step 2: Convert to fraction form
    1,450.79/2,163.98 = 1,317.76/x
  3. Step 3: Cross multiply
    1,450.79x = 2,163.98 × 1,317.76
  4. Step 4: Simplify right side
    1,450.79x = 2,851,604.17
  5. Step 5: Solve for x
    x = 2,851,604.17/1,450.79
  6. Step 6: Final answer
    x = 1,965.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.