Home / 1,576.08-2,172.87-1,103.34

Finding the Fourth Proportional to 1,576.08, 2,172.87 and 1,103.34

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Solution

The fourth proportional to 1,576.08, 2,172.87 and 1,103.34 is: 1,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.08 : 2,172.87 = 1,103.34 : x
  2. Step 2: Convert to fraction form
    1,576.08/2,172.87 = 1,103.34/x
  3. Step 3: Cross multiply
    1,576.08x = 2,172.87 × 1,103.34
  4. Step 4: Simplify right side
    1,576.08x = 2,397,414.39
  5. Step 5: Solve for x
    x = 2,397,414.39/1,576.08
  6. Step 6: Final answer
    x = 1,521.12

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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.