Home / 3,543.55-5,315.68-1,354.12

Finding the Fourth Proportional to 3,543.55, 5,315.68 and 1,354.12

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Solution

The fourth proportional to 3,543.55, 5,315.68 and 1,354.12 is: 2,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.55 : 5,315.68 = 1,354.12 : x
  2. Step 2: Convert to fraction form
    3,543.55/5,315.68 = 1,354.12/x
  3. Step 3: Cross multiply
    3,543.55x = 5,315.68 × 1,354.12
  4. Step 4: Simplify right side
    3,543.55x = 7,198,057.01
  5. Step 5: Solve for x
    x = 7,198,057.01/3,543.55
  6. Step 6: Final answer
    x = 2,031.31

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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.