Home / 1,431.24-2,147.58-1,066.76

Finding the Fourth Proportional to 1,431.24, 2,147.58 and 1,066.76

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Solution

The fourth proportional to 1,431.24, 2,147.58 and 1,066.76 is: 1,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.24 : 2,147.58 = 1,066.76 : x
  2. Step 2: Convert to fraction form
    1,431.24/2,147.58 = 1,066.76/x
  3. Step 3: Cross multiply
    1,431.24x = 2,147.58 × 1,066.76
  4. Step 4: Simplify right side
    1,431.24x = 2,290,952.44
  5. Step 5: Solve for x
    x = 2,290,952.44/1,431.24
  6. Step 6: Final answer
    x = 1,600.68

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1.5x scale

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.