Home / 5,438.52-8,156.40-2,316.80

Finding the Fourth Proportional to 5,438.52, 8,156.40 and 2,316.80

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Solution

The fourth proportional to 5,438.52, 8,156.40 and 2,316.80 is: 3,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.52 : 8,156.40 = 2,316.80 : x
  2. Step 2: Convert to fraction form
    5,438.52/8,156.40 = 2,316.80/x
  3. Step 3: Cross multiply
    5,438.52x = 8,156.40 × 2,316.80
  4. Step 4: Simplify right side
    5,438.52x = 18,896,747.52
  5. Step 5: Solve for x
    x = 18,896,747.52/5,438.52
  6. Step 6: Final answer
    x = 3,474.61

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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.