Home / 2,320.98-3,472.68-1,431.72

Finding the Fourth Proportional to 2,320.98, 3,472.68 and 1,431.72

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Solution

The fourth proportional to 2,320.98, 3,472.68 and 1,431.72 is: 2,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.98 : 3,472.68 = 1,431.72 : x
  2. Step 2: Convert to fraction form
    2,320.98/3,472.68 = 1,431.72/x
  3. Step 3: Cross multiply
    2,320.98x = 3,472.68 × 1,431.72
  4. Step 4: Simplify right side
    2,320.98x = 4,971,905.41
  5. Step 5: Solve for x
    x = 4,971,905.41/2,320.98
  6. Step 6: Final answer
    x = 2,142.16

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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.