Home / 3,851.39-5,775.99-1,219.10

Finding the Fourth Proportional to 3,851.39, 5,775.99 and 1,219.10

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Solution

The fourth proportional to 3,851.39, 5,775.99 and 1,219.10 is: 1,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.39 : 5,775.99 = 1,219.10 : x
  2. Step 2: Convert to fraction form
    3,851.39/5,775.99 = 1,219.10/x
  3. Step 3: Cross multiply
    3,851.39x = 5,775.99 × 1,219.10
  4. Step 4: Simplify right side
    3,851.39x = 7,041,480.53
  5. Step 5: Solve for x
    x = 7,041,480.53/3,851.39
  6. Step 6: Final answer
    x = 1,828.30

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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.