Home / 2,811.04-3,874.08-2,635.68

Finding the Fourth Proportional to 2,811.04, 3,874.08 and 2,635.68

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Solution

The fourth proportional to 2,811.04, 3,874.08 and 2,635.68 is: 3,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.04 : 3,874.08 = 2,635.68 : x
  2. Step 2: Convert to fraction form
    2,811.04/3,874.08 = 2,635.68/x
  3. Step 3: Cross multiply
    2,811.04x = 3,874.08 × 2,635.68
  4. Step 4: Simplify right side
    2,811.04x = 10,210,835.17
  5. Step 5: Solve for x
    x = 10,210,835.17/2,811.04
  6. Step 6: Final answer
    x = 3,632.40

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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.