Home / 2,977.68-4,109.20-1,651.34

Finding the Fourth Proportional to 2,977.68, 4,109.20 and 1,651.34

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Solution

The fourth proportional to 2,977.68, 4,109.20 and 1,651.34 is: 2,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.68 : 4,109.20 = 1,651.34 : x
  2. Step 2: Convert to fraction form
    2,977.68/4,109.20 = 1,651.34/x
  3. Step 3: Cross multiply
    2,977.68x = 4,109.20 × 1,651.34
  4. Step 4: Simplify right side
    2,977.68x = 6,785,686.33
  5. Step 5: Solve for x
    x = 6,785,686.33/2,977.68
  6. Step 6: Final answer
    x = 2,278.85

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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.