Home / 1,468.12-2,202.18-646.36

Finding the Fourth Proportional to 1,468.12, 2,202.18 and 646.36

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Solution

The fourth proportional to 1,468.12, 2,202.18 and 646.36 is: 969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.12 : 2,202.18 = 646.36 : x
  2. Step 2: Convert to fraction form
    1,468.12/2,202.18 = 646.36/x
  3. Step 3: Cross multiply
    1,468.12x = 2,202.18 × 646.36
  4. Step 4: Simplify right side
    1,468.12x = 1,423,401.06
  5. Step 5: Solve for x
    x = 1,423,401.06/1,468.12
  6. Step 6: Final answer
    x = 969.54

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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.