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Finding the Fourth Proportional to 1,516.44, 2,274.72 and 866.88

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Solution

The fourth proportional to 1,516.44, 2,274.72 and 866.88 is: 1,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.44 : 2,274.72 = 866.88 : x
  2. Step 2: Convert to fraction form
    1,516.44/2,274.72 = 866.88/x
  3. Step 3: Cross multiply
    1,516.44x = 2,274.72 × 866.88
  4. Step 4: Simplify right side
    1,516.44x = 1,971,909.27
  5. Step 5: Solve for x
    x = 1,971,909.27/1,516.44
  6. Step 6: Final answer
    x = 1,300.35

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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.