Home / 3,412.46-5,118.67-947.27

Finding the Fourth Proportional to 3,412.46, 5,118.67 and 947.27

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Solution

The fourth proportional to 3,412.46, 5,118.67 and 947.27 is: 1,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.46 : 5,118.67 = 947.27 : x
  2. Step 2: Convert to fraction form
    3,412.46/5,118.67 = 947.27/x
  3. Step 3: Cross multiply
    3,412.46x = 5,118.67 × 947.27
  4. Step 4: Simplify right side
    3,412.46x = 4,848,762.53
  5. Step 5: Solve for x
    x = 4,848,762.53/3,412.46
  6. Step 6: Final answer
    x = 1,420.90

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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.