Home / 2,820.15-4,230.90-1,433.70

Finding the Fourth Proportional to 2,820.15, 4,230.90 and 1,433.70

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Solution

The fourth proportional to 2,820.15, 4,230.90 and 1,433.70 is: 2,150.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.15 : 4,230.90 = 1,433.70 : x
  2. Step 2: Convert to fraction form
    2,820.15/4,230.90 = 1,433.70/x
  3. Step 3: Cross multiply
    2,820.15x = 4,230.90 × 1,433.70
  4. Step 4: Simplify right side
    2,820.15x = 6,065,841.33
  5. Step 5: Solve for x
    x = 6,065,841.33/2,820.15
  6. Step 6: Final answer
    x = 2,150.89

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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.