Home / 1,429-2,140.14-1,199.35

Finding the Fourth Proportional to 1,429, 2,140.14 and 1,199.35

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Solution

The fourth proportional to 1,429, 2,140.14 and 1,199.35 is: 1,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429 : 2,140.14 = 1,199.35 : x
  2. Step 2: Convert to fraction form
    1,429/2,140.14 = 1,199.35/x
  3. Step 3: Cross multiply
    1,429x = 2,140.14 × 1,199.35
  4. Step 4: Simplify right side
    1,429x = 2,566,776.91
  5. Step 5: Solve for x
    x = 2,566,776.91/1,429
  6. Step 6: Final answer
    x = 1,796.20

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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.