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Finding the Fourth Proportional to 7,316.80, 10,975.16 and 1,770.17

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Solution

The fourth proportional to 7,316.80, 10,975.16 and 1,770.17 is: 2,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.80 : 10,975.16 = 1,770.17 : x
  2. Step 2: Convert to fraction form
    7,316.80/10,975.16 = 1,770.17/x
  3. Step 3: Cross multiply
    7,316.80x = 10,975.16 × 1,770.17
  4. Step 4: Simplify right side
    7,316.80x = 19,427,917.56
  5. Step 5: Solve for x
    x = 19,427,917.56/7,316.80
  6. Step 6: Final answer
    x = 2,655.25

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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.