Home / 2,420.80-3,341.60-1,634.88

Finding the Fourth Proportional to 2,420.80, 3,341.60 and 1,634.88

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Solution

The fourth proportional to 2,420.80, 3,341.60 and 1,634.88 is: 2,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.80 : 3,341.60 = 1,634.88 : x
  2. Step 2: Convert to fraction form
    2,420.80/3,341.60 = 1,634.88/x
  3. Step 3: Cross multiply
    2,420.80x = 3,341.60 × 1,634.88
  4. Step 4: Simplify right side
    2,420.80x = 5,463,115.01
  5. Step 5: Solve for x
    x = 5,463,115.01/2,420.80
  6. Step 6: Final answer
    x = 2,256.74

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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.