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Finding the Fourth Proportional to 2,316.81, 3,474.33 and 756.39

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Solution

The fourth proportional to 2,316.81, 3,474.33 and 756.39 is: 1,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.81 : 3,474.33 = 756.39 : x
  2. Step 2: Convert to fraction form
    2,316.81/3,474.33 = 756.39/x
  3. Step 3: Cross multiply
    2,316.81x = 3,474.33 × 756.39
  4. Step 4: Simplify right side
    2,316.81x = 2,627,948.47
  5. Step 5: Solve for x
    x = 2,627,948.47/2,316.81
  6. Step 6: Final answer
    x = 1,134.30

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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.