Home / 3,340.08-4,606.80-2,811.78

Finding the Fourth Proportional to 3,340.08, 4,606.80 and 2,811.78

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Solution

The fourth proportional to 3,340.08, 4,606.80 and 2,811.78 is: 3,878.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.08 : 4,606.80 = 2,811.78 : x
  2. Step 2: Convert to fraction form
    3,340.08/4,606.80 = 2,811.78/x
  3. Step 3: Cross multiply
    3,340.08x = 4,606.80 × 2,811.78
  4. Step 4: Simplify right side
    3,340.08x = 12,953,308.10
  5. Step 5: Solve for x
    x = 12,953,308.10/3,340.08
  6. Step 6: Final answer
    x = 3,878.14

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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.