Home / 2,926.76-4,039.88-2,777.99

Finding the Fourth Proportional to 2,926.76, 4,039.88 and 2,777.99

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Solution

The fourth proportional to 2,926.76, 4,039.88 and 2,777.99 is: 3,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.76 : 4,039.88 = 2,777.99 : x
  2. Step 2: Convert to fraction form
    2,926.76/4,039.88 = 2,777.99/x
  3. Step 3: Cross multiply
    2,926.76x = 4,039.88 × 2,777.99
  4. Step 4: Simplify right side
    2,926.76x = 11,222,712.15
  5. Step 5: Solve for x
    x = 11,222,712.15/2,926.76
  6. Step 6: Final answer
    x = 3,834.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.