Home / 3,461.90-4,777.26-2,135.74

Finding the Fourth Proportional to 3,461.90, 4,777.26 and 2,135.74

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Solution

The fourth proportional to 3,461.90, 4,777.26 and 2,135.74 is: 2,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.90 : 4,777.26 = 2,135.74 : x
  2. Step 2: Convert to fraction form
    3,461.90/4,777.26 = 2,135.74/x
  3. Step 3: Cross multiply
    3,461.90x = 4,777.26 × 2,135.74
  4. Step 4: Simplify right side
    3,461.90x = 10,202,985.27
  5. Step 5: Solve for x
    x = 10,202,985.27/3,461.90
  6. Step 6: Final answer
    x = 2,947.22

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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.