Home / 2,960.25-4,085.80-1,898.86

Finding the Fourth Proportional to 2,960.25, 4,085.80 and 1,898.86

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Solution

The fourth proportional to 2,960.25, 4,085.80 and 1,898.86 is: 2,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.25 : 4,085.80 = 1,898.86 : x
  2. Step 2: Convert to fraction form
    2,960.25/4,085.80 = 1,898.86/x
  3. Step 3: Cross multiply
    2,960.25x = 4,085.80 × 1,898.86
  4. Step 4: Simplify right side
    2,960.25x = 7,758,372.40
  5. Step 5: Solve for x
    x = 7,758,372.40/2,960.25
  6. Step 6: Final answer
    x = 2,620.85

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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.