Home / 1,635.20-2,457.60-1,606.40

Finding the Fourth Proportional to 1,635.20, 2,457.60 and 1,606.40

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Solution

The fourth proportional to 1,635.20, 2,457.60 and 1,606.40 is: 2,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.20 : 2,457.60 = 1,606.40 : x
  2. Step 2: Convert to fraction form
    1,635.20/2,457.60 = 1,606.40/x
  3. Step 3: Cross multiply
    1,635.20x = 2,457.60 × 1,606.40
  4. Step 4: Simplify right side
    1,635.20x = 3,947,888.64
  5. Step 5: Solve for x
    x = 3,947,888.64/1,635.20
  6. Step 6: Final answer
    x = 2,414.32

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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.