Home / 1,431.21-2,146.83-565.50

Finding the Fourth Proportional to 1,431.21, 2,146.83 and 565.50

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Solution

The fourth proportional to 1,431.21, 2,146.83 and 565.50 is: 848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.21 : 2,146.83 = 565.50 : x
  2. Step 2: Convert to fraction form
    1,431.21/2,146.83 = 565.50/x
  3. Step 3: Cross multiply
    1,431.21x = 2,146.83 × 565.50
  4. Step 4: Simplify right side
    1,431.21x = 1,214,032.37
  5. Step 5: Solve for x
    x = 1,214,032.37/1,431.21
  6. Step 6: Final answer
    x = 848.26

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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.