Home / 2,756.50-4,134.75-2,618.08

Finding the Fourth Proportional to 2,756.50, 4,134.75 and 2,618.08

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Solution

The fourth proportional to 2,756.50, 4,134.75 and 2,618.08 is: 3,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.50 : 4,134.75 = 2,618.08 : x
  2. Step 2: Convert to fraction form
    2,756.50/4,134.75 = 2,618.08/x
  3. Step 3: Cross multiply
    2,756.50x = 4,134.75 × 2,618.08
  4. Step 4: Simplify right side
    2,756.50x = 10,825,106.28
  5. Step 5: Solve for x
    x = 10,825,106.28/2,756.50
  6. Step 6: Final answer
    x = 3,927.12

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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.