Home / 1,720.31-2,373.83-964.12

Finding the Fourth Proportional to 1,720.31, 2,373.83 and 964.12

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Solution

The fourth proportional to 1,720.31, 2,373.83 and 964.12 is: 1,330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.31 : 2,373.83 = 964.12 : x
  2. Step 2: Convert to fraction form
    1,720.31/2,373.83 = 964.12/x
  3. Step 3: Cross multiply
    1,720.31x = 2,373.83 × 964.12
  4. Step 4: Simplify right side
    1,720.31x = 2,288,656.98
  5. Step 5: Solve for x
    x = 2,288,656.98/1,720.31
  6. Step 6: Final answer
    x = 1,330.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.