Home / 1,635.10-2,447.05-986.30

Finding the Fourth Proportional to 1,635.10, 2,447.05 and 986.30

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Solution

The fourth proportional to 1,635.10, 2,447.05 and 986.30 is: 1,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.10 : 2,447.05 = 986.30 : x
  2. Step 2: Convert to fraction form
    1,635.10/2,447.05 = 986.30/x
  3. Step 3: Cross multiply
    1,635.10x = 2,447.05 × 986.30
  4. Step 4: Simplify right side
    1,635.10x = 2,413,525.42
  5. Step 5: Solve for x
    x = 2,413,525.42/1,635.10
  6. Step 6: Final answer
    x = 1,476.07

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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.