Home / 4,775.02-7,161.45-1,812.85

Finding the Fourth Proportional to 4,775.02, 7,161.45 and 1,812.85

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Solution

The fourth proportional to 4,775.02, 7,161.45 and 1,812.85 is: 2,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.02 : 7,161.45 = 1,812.85 : x
  2. Step 2: Convert to fraction form
    4,775.02/7,161.45 = 1,812.85/x
  3. Step 3: Cross multiply
    4,775.02x = 7,161.45 × 1,812.85
  4. Step 4: Simplify right side
    4,775.02x = 12,982,609.93
  5. Step 5: Solve for x
    x = 12,982,609.93/4,775.02
  6. Step 6: Final answer
    x = 2,718.86

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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.