Home / 1,782.06-2,459.19-985.44

Finding the Fourth Proportional to 1,782.06, 2,459.19 and 985.44

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Solution

The fourth proportional to 1,782.06, 2,459.19 and 985.44 is: 1,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.06 : 2,459.19 = 985.44 : x
  2. Step 2: Convert to fraction form
    1,782.06/2,459.19 = 985.44/x
  3. Step 3: Cross multiply
    1,782.06x = 2,459.19 × 985.44
  4. Step 4: Simplify right side
    1,782.06x = 2,423,384.19
  5. Step 5: Solve for x
    x = 2,423,384.19/1,782.06
  6. Step 6: Final answer
    x = 1,359.88

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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.