Home / 2,885.90-4,329.46-1,242.86

Finding the Fourth Proportional to 2,885.90, 4,329.46 and 1,242.86

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Solution

The fourth proportional to 2,885.90, 4,329.46 and 1,242.86 is: 1,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.90 : 4,329.46 = 1,242.86 : x
  2. Step 2: Convert to fraction form
    2,885.90/4,329.46 = 1,242.86/x
  3. Step 3: Cross multiply
    2,885.90x = 4,329.46 × 1,242.86
  4. Step 4: Simplify right side
    2,885.90x = 5,380,912.66
  5. Step 5: Solve for x
    x = 5,380,912.66/2,885.90
  6. Step 6: Final answer
    x = 1,864.55

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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.