Home / 4,519.78-6,764.16-3,123.74

Finding the Fourth Proportional to 4,519.78, 6,764.16 and 3,123.74

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Solution

The fourth proportional to 4,519.78, 6,764.16 and 3,123.74 is: 4,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.78 : 6,764.16 = 3,123.74 : x
  2. Step 2: Convert to fraction form
    4,519.78/6,764.16 = 3,123.74/x
  3. Step 3: Cross multiply
    4,519.78x = 6,764.16 × 3,123.74
  4. Step 4: Simplify right side
    4,519.78x = 21,129,477.16
  5. Step 5: Solve for x
    x = 21,129,477.16/4,519.78
  6. Step 6: Final answer
    x = 4,674.89

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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.