Home / 2,977.56-4,109.10-1,651.22

Finding the Fourth Proportional to 2,977.56, 4,109.10 and 1,651.22

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Solution

The fourth proportional to 2,977.56, 4,109.10 and 1,651.22 is: 2,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.56 : 4,109.10 = 1,651.22 : x
  2. Step 2: Convert to fraction form
    2,977.56/4,109.10 = 1,651.22/x
  3. Step 3: Cross multiply
    2,977.56x = 4,109.10 × 1,651.22
  4. Step 4: Simplify right side
    2,977.56x = 6,785,016.77
  5. Step 5: Solve for x
    x = 6,785,016.77/2,977.56
  6. Step 6: Final answer
    x = 2,278.72

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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.