Home / 3,869.35-5,336.27-3,123.07

Finding the Fourth Proportional to 3,869.35, 5,336.27 and 3,123.07

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Solution

The fourth proportional to 3,869.35, 5,336.27 and 3,123.07 is: 4,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.35 : 5,336.27 = 3,123.07 : x
  2. Step 2: Convert to fraction form
    3,869.35/5,336.27 = 3,123.07/x
  3. Step 3: Cross multiply
    3,869.35x = 5,336.27 × 3,123.07
  4. Step 4: Simplify right side
    3,869.35x = 16,665,529.13
  5. Step 5: Solve for x
    x = 16,665,529.13/3,869.35
  6. Step 6: Final answer
    x = 4,307.06

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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.