Home / 5,434.71-8,153.82-2,145.98

Finding the Fourth Proportional to 5,434.71, 8,153.82 and 2,145.98

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Solution

The fourth proportional to 5,434.71, 8,153.82 and 2,145.98 is: 3,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.71 : 8,153.82 = 2,145.98 : x
  2. Step 2: Convert to fraction form
    5,434.71/8,153.82 = 2,145.98/x
  3. Step 3: Cross multiply
    5,434.71x = 8,153.82 × 2,145.98
  4. Step 4: Simplify right side
    5,434.71x = 17,497,893.87
  5. Step 5: Solve for x
    x = 17,497,893.87/5,434.71
  6. Step 6: Final answer
    x = 3,219.66

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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.