Home / 5,434.90-8,140.20-2,834.80

Finding the Fourth Proportional to 5,434.90, 8,140.20 and 2,834.80

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Solution

The fourth proportional to 5,434.90, 8,140.20 and 2,834.80 is: 4,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.90 : 8,140.20 = 2,834.80 : x
  2. Step 2: Convert to fraction form
    5,434.90/8,140.20 = 2,834.80/x
  3. Step 3: Cross multiply
    5,434.90x = 8,140.20 × 2,834.80
  4. Step 4: Simplify right side
    5,434.90x = 23,075,838.96
  5. Step 5: Solve for x
    x = 23,075,838.96/5,434.90
  6. Step 6: Final answer
    x = 4,245.86

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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.