Home / 1,323.37-1,985.28-543.17

Finding the Fourth Proportional to 1,323.37, 1,985.28 and 543.17

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Solution

The fourth proportional to 1,323.37, 1,985.28 and 543.17 is: 814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.37 : 1,985.28 = 543.17 : x
  2. Step 2: Convert to fraction form
    1,323.37/1,985.28 = 543.17/x
  3. Step 3: Cross multiply
    1,323.37x = 1,985.28 × 543.17
  4. Step 4: Simplify right side
    1,323.37x = 1,078,335.28
  5. Step 5: Solve for x
    x = 1,078,335.28/1,323.37
  6. Step 6: Final answer
    x = 814.84

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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.