Home / 2,770.68-4,155.98-1,127.22

Finding the Fourth Proportional to 2,770.68, 4,155.98 and 1,127.22

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Solution

The fourth proportional to 2,770.68, 4,155.98 and 1,127.22 is: 1,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.68 : 4,155.98 = 1,127.22 : x
  2. Step 2: Convert to fraction form
    2,770.68/4,155.98 = 1,127.22/x
  3. Step 3: Cross multiply
    2,770.68x = 4,155.98 × 1,127.22
  4. Step 4: Simplify right side
    2,770.68x = 4,684,703.78
  5. Step 5: Solve for x
    x = 4,684,703.78/2,770.68
  6. Step 6: Final answer
    x = 1,690.81

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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.