Home / 2,415.00-3,621.49-1,635.20

Finding the Fourth Proportional to 2,415.00, 3,621.49 and 1,635.20

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Solution

The fourth proportional to 2,415.00, 3,621.49 and 1,635.20 is: 2,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.00 : 3,621.49 = 1,635.20 : x
  2. Step 2: Convert to fraction form
    2,415.00/3,621.49 = 1,635.20/x
  3. Step 3: Cross multiply
    2,415.00x = 3,621.49 × 1,635.20
  4. Step 4: Simplify right side
    2,415.00x = 5,921,881.40
  5. Step 5: Solve for x
    x = 5,921,881.40/2,415.00
  6. Step 6: Final answer
    x = 2,452.13

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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.