Home / 2,513.77-3,769.00-1,125.20

Finding the Fourth Proportional to 2,513.77, 3,769.00 and 1,125.20

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Solution

The fourth proportional to 2,513.77, 3,769.00 and 1,125.20 is: 1,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,513.77 : 3,769.00 = 1,125.20 : x
  2. Step 2: Convert to fraction form
    2,513.77/3,769.00 = 1,125.20/x
  3. Step 3: Cross multiply
    2,513.77x = 3,769.00 × 1,125.20
  4. Step 4: Simplify right side
    2,513.77x = 4,240,885.41
  5. Step 5: Solve for x
    x = 4,240,885.41/2,513.77
  6. Step 6: Final answer
    x = 1,687.06

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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.