Home / 3,851.45-5,777.99-1,254.19

Finding the Fourth Proportional to 3,851.45, 5,777.99 and 1,254.19

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Solution

The fourth proportional to 3,851.45, 5,777.99 and 1,254.19 is: 1,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.45 : 5,777.99 = 1,254.19 : x
  2. Step 2: Convert to fraction form
    3,851.45/5,777.99 = 1,254.19/x
  3. Step 3: Cross multiply
    3,851.45x = 5,777.99 × 1,254.19
  4. Step 4: Simplify right side
    3,851.45x = 7,246,697.28
  5. Step 5: Solve for x
    x = 7,246,697.28/3,851.45
  6. Step 6: Final answer
    x = 1,881.55

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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.