Home / 3,438.10-5,154.99-1,586.71

Finding the Fourth Proportional to 3,438.10, 5,154.99 and 1,586.71

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Solution

The fourth proportional to 3,438.10, 5,154.99 and 1,586.71 is: 2,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.10 : 5,154.99 = 1,586.71 : x
  2. Step 2: Convert to fraction form
    3,438.10/5,154.99 = 1,586.71/x
  3. Step 3: Cross multiply
    3,438.10x = 5,154.99 × 1,586.71
  4. Step 4: Simplify right side
    3,438.10x = 8,179,474.18
  5. Step 5: Solve for x
    x = 8,179,474.18/3,438.10
  6. Step 6: Final answer
    x = 2,379.07

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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.