Home / 2,543.90-3,814.36-1,082.30

Finding the Fourth Proportional to 2,543.90, 3,814.36 and 1,082.30

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Solution

The fourth proportional to 2,543.90, 3,814.36 and 1,082.30 is: 1,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.90 : 3,814.36 = 1,082.30 : x
  2. Step 2: Convert to fraction form
    2,543.90/3,814.36 = 1,082.30/x
  3. Step 3: Cross multiply
    2,543.90x = 3,814.36 × 1,082.30
  4. Step 4: Simplify right side
    2,543.90x = 4,128,281.83
  5. Step 5: Solve for x
    x = 4,128,281.83/2,543.90
  6. Step 6: Final answer
    x = 1,622.82

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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.