Home / 3,405.78-4,701.95-2,228.90

Finding the Fourth Proportional to 3,405.78, 4,701.95 and 2,228.90

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Solution

The fourth proportional to 3,405.78, 4,701.95 and 2,228.90 is: 3,077.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.78 : 4,701.95 = 2,228.90 : x
  2. Step 2: Convert to fraction form
    3,405.78/4,701.95 = 2,228.90/x
  3. Step 3: Cross multiply
    3,405.78x = 4,701.95 × 2,228.90
  4. Step 4: Simplify right side
    3,405.78x = 10,480,141.70
  5. Step 5: Solve for x
    x = 10,480,141.70/3,405.78
  6. Step 6: Final answer
    x = 3,077.16

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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.