Home / 2,770.69-4,145.57-1,538.98

Finding the Fourth Proportional to 2,770.69, 4,145.57 and 1,538.98

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Solution

The fourth proportional to 2,770.69, 4,145.57 and 1,538.98 is: 2,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.69 : 4,145.57 = 1,538.98 : x
  2. Step 2: Convert to fraction form
    2,770.69/4,145.57 = 1,538.98/x
  3. Step 3: Cross multiply
    2,770.69x = 4,145.57 × 1,538.98
  4. Step 4: Simplify right side
    2,770.69x = 6,379,920.90
  5. Step 5: Solve for x
    x = 6,379,920.90/2,770.69
  6. Step 6: Final answer
    x = 2,302.65

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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.