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Finding the Fourth Proportional to 1,548.81, 2,136.87 and 950.67

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Solution

The fourth proportional to 1,548.81, 2,136.87 and 950.67 is: 1,311.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.81 : 2,136.87 = 950.67 : x
  2. Step 2: Convert to fraction form
    1,548.81/2,136.87 = 950.67/x
  3. Step 3: Cross multiply
    1,548.81x = 2,136.87 × 950.67
  4. Step 4: Simplify right side
    1,548.81x = 2,031,458.20
  5. Step 5: Solve for x
    x = 2,031,458.20/1,548.81
  6. Step 6: Final answer
    x = 1,311.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.