Home / 3,031.34-4,542.75-2,105.51

Finding the Fourth Proportional to 3,031.34, 4,542.75 and 2,105.51

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Solution

The fourth proportional to 3,031.34, 4,542.75 and 2,105.51 is: 3,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.34 : 4,542.75 = 2,105.51 : x
  2. Step 2: Convert to fraction form
    3,031.34/4,542.75 = 2,105.51/x
  3. Step 3: Cross multiply
    3,031.34x = 4,542.75 × 2,105.51
  4. Step 4: Simplify right side
    3,031.34x = 9,564,782.84
  5. Step 5: Solve for x
    x = 9,564,782.84/3,031.34
  6. Step 6: Final answer
    x = 3,155.30

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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.