Home / 1,815.84-2,502.36-1,317.96

Finding the Fourth Proportional to 1,815.84, 2,502.36 and 1,317.96

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Solution

The fourth proportional to 1,815.84, 2,502.36 and 1,317.96 is: 1,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.84 : 2,502.36 = 1,317.96 : x
  2. Step 2: Convert to fraction form
    1,815.84/2,502.36 = 1,317.96/x
  3. Step 3: Cross multiply
    1,815.84x = 2,502.36 × 1,317.96
  4. Step 4: Simplify right side
    1,815.84x = 3,298,010.39
  5. Step 5: Solve for x
    x = 3,298,010.39/1,815.84
  6. Step 6: Final answer
    x = 1,816.25

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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.