Home / 2,770.18-4,154.82-1,126.66

Finding the Fourth Proportional to 2,770.18, 4,154.82 and 1,126.66

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Solution

The fourth proportional to 2,770.18, 4,154.82 and 1,126.66 is: 1,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.18 : 4,154.82 = 1,126.66 : x
  2. Step 2: Convert to fraction form
    2,770.18/4,154.82 = 1,126.66/x
  3. Step 3: Cross multiply
    2,770.18x = 4,154.82 × 1,126.66
  4. Step 4: Simplify right side
    2,770.18x = 4,681,069.50
  5. Step 5: Solve for x
    x = 4,681,069.50/2,770.18
  6. Step 6: Final answer
    x = 1,689.81

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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.