Home / 5,431.32-8,132.67-4,371.40

Finding the Fourth Proportional to 5,431.32, 8,132.67 and 4,371.40

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Solution

The fourth proportional to 5,431.32, 8,132.67 and 4,371.40 is: 6,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.32 : 8,132.67 = 4,371.40 : x
  2. Step 2: Convert to fraction form
    5,431.32/8,132.67 = 4,371.40/x
  3. Step 3: Cross multiply
    5,431.32x = 8,132.67 × 4,371.40
  4. Step 4: Simplify right side
    5,431.32x = 35,551,163.80
  5. Step 5: Solve for x
    x = 35,551,163.80/5,431.32
  6. Step 6: Final answer
    x = 6,545.58

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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.