Home / 1,431.46-2,148.26-1,065.14

Finding the Fourth Proportional to 1,431.46, 2,148.26 and 1,065.14

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Solution

The fourth proportional to 1,431.46, 2,148.26 and 1,065.14 is: 1,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.46 : 2,148.26 = 1,065.14 : x
  2. Step 2: Convert to fraction form
    1,431.46/2,148.26 = 1,065.14/x
  3. Step 3: Cross multiply
    1,431.46x = 2,148.26 × 1,065.14
  4. Step 4: Simplify right side
    1,431.46x = 2,288,197.66
  5. Step 5: Solve for x
    x = 2,288,197.66/1,431.46
  6. Step 6: Final answer
    x = 1,598.51

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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.