Home / 3,003.89-4,145.87-1,885.78

Finding the Fourth Proportional to 3,003.89, 4,145.87 and 1,885.78

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Solution

The fourth proportional to 3,003.89, 4,145.87 and 1,885.78 is: 2,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.89 : 4,145.87 = 1,885.78 : x
  2. Step 2: Convert to fraction form
    3,003.89/4,145.87 = 1,885.78/x
  3. Step 3: Cross multiply
    3,003.89x = 4,145.87 × 1,885.78
  4. Step 4: Simplify right side
    3,003.89x = 7,818,168.57
  5. Step 5: Solve for x
    x = 7,818,168.57/3,003.89
  6. Step 6: Final answer
    x = 2,602.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.