Home / 3,461.69-4,777.53-2,135.78

Finding the Fourth Proportional to 3,461.69, 4,777.53 and 2,135.78

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Solution

The fourth proportional to 3,461.69, 4,777.53 and 2,135.78 is: 2,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.69 : 4,777.53 = 2,135.78 : x
  2. Step 2: Convert to fraction form
    3,461.69/4,777.53 = 2,135.78/x
  3. Step 3: Cross multiply
    3,461.69x = 4,777.53 × 2,135.78
  4. Step 4: Simplify right side
    3,461.69x = 10,203,753.02
  5. Step 5: Solve for x
    x = 10,203,753.02/3,461.69
  6. Step 6: Final answer
    x = 2,947.62

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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.