Home / 1,549.14-2,135.61-1,231.62

Finding the Fourth Proportional to 1,549.14, 2,135.61 and 1,231.62

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Solution

The fourth proportional to 1,549.14, 2,135.61 and 1,231.62 is: 1,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.14 : 2,135.61 = 1,231.62 : x
  2. Step 2: Convert to fraction form
    1,549.14/2,135.61 = 1,231.62/x
  3. Step 3: Cross multiply
    1,549.14x = 2,135.61 × 1,231.62
  4. Step 4: Simplify right side
    1,549.14x = 2,630,259.99
  5. Step 5: Solve for x
    x = 2,630,259.99/1,549.14
  6. Step 6: Final answer
    x = 1,697.88

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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.