Home / 3,851.58-5,777.77-1,901.90

Finding the Fourth Proportional to 3,851.58, 5,777.77 and 1,901.90

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Solution

The fourth proportional to 3,851.58, 5,777.77 and 1,901.90 is: 2,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.58 : 5,777.77 = 1,901.90 : x
  2. Step 2: Convert to fraction form
    3,851.58/5,777.77 = 1,901.90/x
  3. Step 3: Cross multiply
    3,851.58x = 5,777.77 × 1,901.90
  4. Step 4: Simplify right side
    3,851.58x = 10,988,740.76
  5. Step 5: Solve for x
    x = 10,988,740.76/3,851.58
  6. Step 6: Final answer
    x = 2,853.05

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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.