Home / 1,456.21-2,184.36-482.31

Finding the Fourth Proportional to 1,456.21, 2,184.36 and 482.31

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Solution

The fourth proportional to 1,456.21, 2,184.36 and 482.31 is: 723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.21 : 2,184.36 = 482.31 : x
  2. Step 2: Convert to fraction form
    1,456.21/2,184.36 = 482.31/x
  3. Step 3: Cross multiply
    1,456.21x = 2,184.36 × 482.31
  4. Step 4: Simplify right side
    1,456.21x = 1,053,538.67
  5. Step 5: Solve for x
    x = 1,053,538.67/1,456.21
  6. Step 6: Final answer
    x = 723.48

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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.