Home / 3,543.20-5,315.40-1,899.30

Finding the Fourth Proportional to 3,543.20, 5,315.40 and 1,899.30

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Solution

The fourth proportional to 3,543.20, 5,315.40 and 1,899.30 is: 2,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.20 : 5,315.40 = 1,899.30 : x
  2. Step 2: Convert to fraction form
    3,543.20/5,315.40 = 1,899.30/x
  3. Step 3: Cross multiply
    3,543.20x = 5,315.40 × 1,899.30
  4. Step 4: Simplify right side
    3,543.20x = 10,095,539.22
  5. Step 5: Solve for x
    x = 10,095,539.22/3,543.20
  6. Step 6: Final answer
    x = 2,849.27

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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.