Home / 3,710.85-5,123.37-3,311.84

Finding the Fourth Proportional to 3,710.85, 5,123.37 and 3,311.84

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Solution

The fourth proportional to 3,710.85, 5,123.37 and 3,311.84 is: 4,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.85 : 5,123.37 = 3,311.84 : x
  2. Step 2: Convert to fraction form
    3,710.85/5,123.37 = 3,311.84/x
  3. Step 3: Cross multiply
    3,710.85x = 5,123.37 × 3,311.84
  4. Step 4: Simplify right side
    3,710.85x = 16,967,756.08
  5. Step 5: Solve for x
    x = 16,967,756.08/3,710.85
  6. Step 6: Final answer
    x = 4,572.47

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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.