Home / 3,123.01-4,684.58-1,272.85

Finding the Fourth Proportional to 3,123.01, 4,684.58 and 1,272.85

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Solution

The fourth proportional to 3,123.01, 4,684.58 and 1,272.85 is: 1,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.01 : 4,684.58 = 1,272.85 : x
  2. Step 2: Convert to fraction form
    3,123.01/4,684.58 = 1,272.85/x
  3. Step 3: Cross multiply
    3,123.01x = 4,684.58 × 1,272.85
  4. Step 4: Simplify right side
    3,123.01x = 5,962,744.23
  5. Step 5: Solve for x
    x = 5,962,744.23/3,123.01
  6. Step 6: Final answer
    x = 1,909.29

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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.