Home / 3,114.10-4,671.20-923.05

Finding the Fourth Proportional to 3,114.10, 4,671.20 and 923.05

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Solution

The fourth proportional to 3,114.10, 4,671.20 and 923.05 is: 1,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.10 : 4,671.20 = 923.05 : x
  2. Step 2: Convert to fraction form
    3,114.10/4,671.20 = 923.05/x
  3. Step 3: Cross multiply
    3,114.10x = 4,671.20 × 923.05
  4. Step 4: Simplify right side
    3,114.10x = 4,311,759.31
  5. Step 5: Solve for x
    x = 4,311,759.31/3,114.10
  6. Step 6: Final answer
    x = 1,384.59

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Double scale
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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.