Home / 2,977.88-4,109.55-1,633.55

Finding the Fourth Proportional to 2,977.88, 4,109.55 and 1,633.55

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Solution

The fourth proportional to 2,977.88, 4,109.55 and 1,633.55 is: 2,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.88 : 4,109.55 = 1,633.55 : x
  2. Step 2: Convert to fraction form
    2,977.88/4,109.55 = 1,633.55/x
  3. Step 3: Cross multiply
    2,977.88x = 4,109.55 × 1,633.55
  4. Step 4: Simplify right side
    2,977.88x = 6,713,149.21
  5. Step 5: Solve for x
    x = 6,713,149.21/2,977.88
  6. Step 6: Final answer
    x = 2,254.34

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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.