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Finding the Fourth Proportional to 3,551.68, 5,316 and 3,167.68

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Solution

The fourth proportional to 3,551.68, 5,316 and 3,167.68 is: 4,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.68 : 5,316 = 3,167.68 : x
  2. Step 2: Convert to fraction form
    3,551.68/5,316 = 3,167.68/x
  3. Step 3: Cross multiply
    3,551.68x = 5,316 × 3,167.68
  4. Step 4: Simplify right side
    3,551.68x = 16,839,386.88
  5. Step 5: Solve for x
    x = 16,839,386.88/3,551.68
  6. Step 6: Final answer
    x = 4,741.25

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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.