Home / 2,977.77-4,109.27-1,651.45

Finding the Fourth Proportional to 2,977.77, 4,109.27 and 1,651.45

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Solution

The fourth proportional to 2,977.77, 4,109.27 and 1,651.45 is: 2,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.77 : 4,109.27 = 1,651.45 : x
  2. Step 2: Convert to fraction form
    2,977.77/4,109.27 = 1,651.45/x
  3. Step 3: Cross multiply
    2,977.77x = 4,109.27 × 1,651.45
  4. Step 4: Simplify right side
    2,977.77x = 6,786,243.12
  5. Step 5: Solve for x
    x = 6,786,243.12/2,977.77
  6. Step 6: Final answer
    x = 2,278.97

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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.