Home / 2,764.02-3,811.47-2,134.65

Finding the Fourth Proportional to 2,764.02, 3,811.47 and 2,134.65

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Solution

The fourth proportional to 2,764.02, 3,811.47 and 2,134.65 is: 2,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.02 : 3,811.47 = 2,134.65 : x
  2. Step 2: Convert to fraction form
    2,764.02/3,811.47 = 2,134.65/x
  3. Step 3: Cross multiply
    2,764.02x = 3,811.47 × 2,134.65
  4. Step 4: Simplify right side
    2,764.02x = 8,136,154.44
  5. Step 5: Solve for x
    x = 8,136,154.44/2,764.02
  6. Step 6: Final answer
    x = 2,943.59

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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.