Home / 1,713.45-2,569.19-543.74

Finding the Fourth Proportional to 1,713.45, 2,569.19 and 543.74

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Solution

The fourth proportional to 1,713.45, 2,569.19 and 543.74 is: 815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.45 : 2,569.19 = 543.74 : x
  2. Step 2: Convert to fraction form
    1,713.45/2,569.19 = 543.74/x
  3. Step 3: Cross multiply
    1,713.45x = 2,569.19 × 543.74
  4. Step 4: Simplify right side
    1,713.45x = 1,396,971.37
  5. Step 5: Solve for x
    x = 1,396,971.37/1,713.45
  6. Step 6: Final answer
    x = 815.30

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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.