Home / 2,977.01-4,108.76-2,267.72

Finding the Fourth Proportional to 2,977.01, 4,108.76 and 2,267.72

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Solution

The fourth proportional to 2,977.01, 4,108.76 and 2,267.72 is: 3,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.01 : 4,108.76 = 2,267.72 : x
  2. Step 2: Convert to fraction form
    2,977.01/4,108.76 = 2,267.72/x
  3. Step 3: Cross multiply
    2,977.01x = 4,108.76 × 2,267.72
  4. Step 4: Simplify right side
    2,977.01x = 9,317,517.23
  5. Step 5: Solve for x
    x = 9,317,517.23/2,977.01
  6. Step 6: Final answer
    x = 3,129.82

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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.