Home / 3,851.40-5,777.10-1,903.35

Finding the Fourth Proportional to 3,851.40, 5,777.10 and 1,903.35

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Solution

The fourth proportional to 3,851.40, 5,777.10 and 1,903.35 is: 2,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.40 : 5,777.10 = 1,903.35 : x
  2. Step 2: Convert to fraction form
    3,851.40/5,777.10 = 1,903.35/x
  3. Step 3: Cross multiply
    3,851.40x = 5,777.10 × 1,903.35
  4. Step 4: Simplify right side
    3,851.40x = 10,995,843.29
  5. Step 5: Solve for x
    x = 10,995,843.29/3,851.40
  6. Step 6: Final answer
    x = 2,855.03

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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.