Home / 5,141.30-7,707.26-1,853.66

Finding the Fourth Proportional to 5,141.30, 7,707.26 and 1,853.66

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Solution

The fourth proportional to 5,141.30, 7,707.26 and 1,853.66 is: 2,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.30 : 7,707.26 = 1,853.66 : x
  2. Step 2: Convert to fraction form
    5,141.30/7,707.26 = 1,853.66/x
  3. Step 3: Cross multiply
    5,141.30x = 7,707.26 × 1,853.66
  4. Step 4: Simplify right side
    5,141.30x = 14,286,639.57
  5. Step 5: Solve for x
    x = 14,286,639.57/5,141.30
  6. Step 6: Final answer
    x = 2,778.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.