Home / 5,136.10-7,704.15-1,673.70

Finding the Fourth Proportional to 5,136.10, 7,704.15 and 1,673.70

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Solution

The fourth proportional to 5,136.10, 7,704.15 and 1,673.70 is: 2,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.10 : 7,704.15 = 1,673.70 : x
  2. Step 2: Convert to fraction form
    5,136.10/7,704.15 = 1,673.70/x
  3. Step 3: Cross multiply
    5,136.10x = 7,704.15 × 1,673.70
  4. Step 4: Simplify right side
    5,136.10x = 12,894,435.86
  5. Step 5: Solve for x
    x = 12,894,435.86/5,136.10
  6. Step 6: Final answer
    x = 2,510.55

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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.