Home / 2,031.30-3,048.30-1,153.80

Finding the Fourth Proportional to 2,031.30, 3,048.30 and 1,153.80

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Solution

The fourth proportional to 2,031.30, 3,048.30 and 1,153.80 is: 1,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.30 : 3,048.30 = 1,153.80 : x
  2. Step 2: Convert to fraction form
    2,031.30/3,048.30 = 1,153.80/x
  3. Step 3: Cross multiply
    2,031.30x = 3,048.30 × 1,153.80
  4. Step 4: Simplify right side
    2,031.30x = 3,517,128.54
  5. Step 5: Solve for x
    x = 3,517,128.54/2,031.30
  6. Step 6: Final answer
    x = 1,731.47

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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.