Home / 1,815.47-2,504.96-1,069.16

Finding the Fourth Proportional to 1,815.47, 2,504.96 and 1,069.16

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Solution

The fourth proportional to 1,815.47, 2,504.96 and 1,069.16 is: 1,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.47 : 2,504.96 = 1,069.16 : x
  2. Step 2: Convert to fraction form
    1,815.47/2,504.96 = 1,069.16/x
  3. Step 3: Cross multiply
    1,815.47x = 2,504.96 × 1,069.16
  4. Step 4: Simplify right side
    1,815.47x = 2,678,190.51
  5. Step 5: Solve for x
    x = 2,678,190.51/1,815.47
  6. Step 6: Final answer
    x = 1,475.21

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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.