Home / 1,786.65-2,465.28-1,123.03

Finding the Fourth Proportional to 1,786.65, 2,465.28 and 1,123.03

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Solution

The fourth proportional to 1,786.65, 2,465.28 and 1,123.03 is: 1,549.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.65 : 2,465.28 = 1,123.03 : x
  2. Step 2: Convert to fraction form
    1,786.65/2,465.28 = 1,123.03/x
  3. Step 3: Cross multiply
    1,786.65x = 2,465.28 × 1,123.03
  4. Step 4: Simplify right side
    1,786.65x = 2,768,583.40
  5. Step 5: Solve for x
    x = 2,768,583.40/1,786.65
  6. Step 6: Final answer
    x = 1,549.59

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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.