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Finding the Fourth Proportional to 7,008.80, 10,512.89 and 1,743.70

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Solution

The fourth proportional to 7,008.80, 10,512.89 and 1,743.70 is: 2,615.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.80 : 10,512.89 = 1,743.70 : x
  2. Step 2: Convert to fraction form
    7,008.80/10,512.89 = 1,743.70/x
  3. Step 3: Cross multiply
    7,008.80x = 10,512.89 × 1,743.70
  4. Step 4: Simplify right side
    7,008.80x = 18,331,326.29
  5. Step 5: Solve for x
    x = 18,331,326.29/7,008.80
  6. Step 6: Final answer
    x = 2,615.47

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1.5x scale

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.