Home / 1,815.16-2,505.37-1,116.13

Finding the Fourth Proportional to 1,815.16, 2,505.37 and 1,116.13

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Solution

The fourth proportional to 1,815.16, 2,505.37 and 1,116.13 is: 1,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.16 : 2,505.37 = 1,116.13 : x
  2. Step 2: Convert to fraction form
    1,815.16/2,505.37 = 1,116.13/x
  3. Step 3: Cross multiply
    1,815.16x = 2,505.37 × 1,116.13
  4. Step 4: Simplify right side
    1,815.16x = 2,796,318.62
  5. Step 5: Solve for x
    x = 2,796,318.62/1,815.16
  6. Step 6: Final answer
    x = 1,540.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.