Home / 2,760.69-4,140.39-1,770.51

Finding the Fourth Proportional to 2,760.69, 4,140.39 and 1,770.51

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Solution

The fourth proportional to 2,760.69, 4,140.39 and 1,770.51 is: 2,655.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.69 : 4,140.39 = 1,770.51 : x
  2. Step 2: Convert to fraction form
    2,760.69/4,140.39 = 1,770.51/x
  3. Step 3: Cross multiply
    2,760.69x = 4,140.39 × 1,770.51
  4. Step 4: Simplify right side
    2,760.69x = 7,330,601.90
  5. Step 5: Solve for x
    x = 7,330,601.90/2,760.69
  6. Step 6: Final answer
    x = 2,655.35

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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.