Home / 2,031.72-3,045.44-1,153.12

Finding the Fourth Proportional to 2,031.72, 3,045.44 and 1,153.12

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Solution

The fourth proportional to 2,031.72, 3,045.44 and 1,153.12 is: 1,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.72 : 3,045.44 = 1,153.12 : x
  2. Step 2: Convert to fraction form
    2,031.72/3,045.44 = 1,153.12/x
  3. Step 3: Cross multiply
    2,031.72x = 3,045.44 × 1,153.12
  4. Step 4: Simplify right side
    2,031.72x = 3,511,757.77
  5. Step 5: Solve for x
    x = 3,511,757.77/2,031.72
  6. Step 6: Final answer
    x = 1,728.47

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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.