Home / 2,823.45-3,895.34-1,581.45

Finding the Fourth Proportional to 2,823.45, 3,895.34 and 1,581.45

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Solution

The fourth proportional to 2,823.45, 3,895.34 and 1,581.45 is: 2,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.45 : 3,895.34 = 1,581.45 : x
  2. Step 2: Convert to fraction form
    2,823.45/3,895.34 = 1,581.45/x
  3. Step 3: Cross multiply
    2,823.45x = 3,895.34 × 1,581.45
  4. Step 4: Simplify right side
    2,823.45x = 6,160,271.82
  5. Step 5: Solve for x
    x = 6,160,271.82/2,823.45
  6. Step 6: Final answer
    x = 2,181.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.