Home / 2,977.65-4,109.40-1,651.76

Finding the Fourth Proportional to 2,977.65, 4,109.40 and 1,651.76

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Solution

The fourth proportional to 2,977.65, 4,109.40 and 1,651.76 is: 2,279.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.65 : 4,109.40 = 1,651.76 : x
  2. Step 2: Convert to fraction form
    2,977.65/4,109.40 = 1,651.76/x
  3. Step 3: Cross multiply
    2,977.65x = 4,109.40 × 1,651.76
  4. Step 4: Simplify right side
    2,977.65x = 6,787,722.00
  5. Step 5: Solve for x
    x = 6,787,722.00/2,977.65
  6. Step 6: Final answer
    x = 2,279.56

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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.