Home / 1,134.12-1,700.36-440.20

Finding the Fourth Proportional to 1,134.12, 1,700.36 and 440.20

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Solution

The fourth proportional to 1,134.12, 1,700.36 and 440.20 is: 659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.12 : 1,700.36 = 440.20 : x
  2. Step 2: Convert to fraction form
    1,134.12/1,700.36 = 440.20/x
  3. Step 3: Cross multiply
    1,134.12x = 1,700.36 × 440.20
  4. Step 4: Simplify right side
    1,134.12x = 748,500.05
  5. Step 5: Solve for x
    x = 748,500.05/1,134.12
  6. Step 6: Final answer
    x = 659.98

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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.