Home / 1,431.01-2,146.53-969.70

Finding the Fourth Proportional to 1,431.01, 2,146.53 and 969.70

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Solution

The fourth proportional to 1,431.01, 2,146.53 and 969.70 is: 1,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.01 : 2,146.53 = 969.70 : x
  2. Step 2: Convert to fraction form
    1,431.01/2,146.53 = 969.70/x
  3. Step 3: Cross multiply
    1,431.01x = 2,146.53 × 969.70
  4. Step 4: Simplify right side
    1,431.01x = 2,081,490.14
  5. Step 5: Solve for x
    x = 2,081,490.14/1,431.01
  6. Step 6: Final answer
    x = 1,454.56

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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.