Home / 3,465.20-4,777.04-2,138.02

Finding the Fourth Proportional to 3,465.20, 4,777.04 and 2,138.02

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Solution

The fourth proportional to 3,465.20, 4,777.04 and 2,138.02 is: 2,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.20 : 4,777.04 = 2,138.02 : x
  2. Step 2: Convert to fraction form
    3,465.20/4,777.04 = 2,138.02/x
  3. Step 3: Cross multiply
    3,465.20x = 4,777.04 × 2,138.02
  4. Step 4: Simplify right side
    3,465.20x = 10,213,407.06
  5. Step 5: Solve for x
    x = 10,213,407.06/3,465.20
  6. Step 6: Final answer
    x = 2,947.42

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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.