Home / 2,543.84-3,815.40-1,082.24

Finding the Fourth Proportional to 2,543.84, 3,815.40 and 1,082.24

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Solution

The fourth proportional to 2,543.84, 3,815.40 and 1,082.24 is: 1,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.84 : 3,815.40 = 1,082.24 : x
  2. Step 2: Convert to fraction form
    2,543.84/3,815.40 = 1,082.24/x
  3. Step 3: Cross multiply
    2,543.84x = 3,815.40 × 1,082.24
  4. Step 4: Simplify right side
    2,543.84x = 4,129,178.50
  5. Step 5: Solve for x
    x = 4,129,178.50/2,543.84
  6. Step 6: Final answer
    x = 1,623.21

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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.