Home / 1,815.30-2,735.06-1,642.16

Finding the Fourth Proportional to 1,815.30, 2,735.06 and 1,642.16

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Solution

The fourth proportional to 1,815.30, 2,735.06 and 1,642.16 is: 2,474.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.30 : 2,735.06 = 1,642.16 : x
  2. Step 2: Convert to fraction form
    1,815.30/2,735.06 = 1,642.16/x
  3. Step 3: Cross multiply
    1,815.30x = 2,735.06 × 1,642.16
  4. Step 4: Simplify right side
    1,815.30x = 4,491,406.13
  5. Step 5: Solve for x
    x = 4,491,406.13/1,815.30
  6. Step 6: Final answer
    x = 2,474.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.