Home / 2,772.29-4,157.33-1,310.45

Finding the Fourth Proportional to 2,772.29, 4,157.33 and 1,310.45

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Solution

The fourth proportional to 2,772.29, 4,157.33 and 1,310.45 is: 1,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.29 : 4,157.33 = 1,310.45 : x
  2. Step 2: Convert to fraction form
    2,772.29/4,157.33 = 1,310.45/x
  3. Step 3: Cross multiply
    2,772.29x = 4,157.33 × 1,310.45
  4. Step 4: Simplify right side
    2,772.29x = 5,447,945.76
  5. Step 5: Solve for x
    x = 5,447,945.76/2,772.29
  6. Step 6: Final answer
    x = 1,965.14

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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.