Home / 1,130.21-1,695.12-308.27

Finding the Fourth Proportional to 1,130.21, 1,695.12 and 308.27

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Solution

The fourth proportional to 1,130.21, 1,695.12 and 308.27 is: 462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.21 : 1,695.12 = 308.27 : x
  2. Step 2: Convert to fraction form
    1,130.21/1,695.12 = 308.27/x
  3. Step 3: Cross multiply
    1,130.21x = 1,695.12 × 308.27
  4. Step 4: Simplify right side
    1,130.21x = 522,546.17
  5. Step 5: Solve for x
    x = 522,546.17/1,130.21
  6. Step 6: Final answer
    x = 462.35

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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.