Home / 3,077.75-4,246.38-1,818.92

Finding the Fourth Proportional to 3,077.75, 4,246.38 and 1,818.92

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Solution

The fourth proportional to 3,077.75, 4,246.38 and 1,818.92 is: 2,509.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.75 : 4,246.38 = 1,818.92 : x
  2. Step 2: Convert to fraction form
    3,077.75/4,246.38 = 1,818.92/x
  3. Step 3: Cross multiply
    3,077.75x = 4,246.38 × 1,818.92
  4. Step 4: Simplify right side
    3,077.75x = 7,723,836.13
  5. Step 5: Solve for x
    x = 7,723,836.13/3,077.75
  6. Step 6: Final answer
    x = 2,509.57

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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.