Home / 1,513.49-2,270.69-1,252.31

Finding the Fourth Proportional to 1,513.49, 2,270.69 and 1,252.31

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Solution

The fourth proportional to 1,513.49, 2,270.69 and 1,252.31 is: 1,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.49 : 2,270.69 = 1,252.31 : x
  2. Step 2: Convert to fraction form
    1,513.49/2,270.69 = 1,252.31/x
  3. Step 3: Cross multiply
    1,513.49x = 2,270.69 × 1,252.31
  4. Step 4: Simplify right side
    1,513.49x = 2,843,607.79
  5. Step 5: Solve for x
    x = 2,843,607.79/1,513.49
  6. Step 6: Final answer
    x = 1,878.84

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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.