Home / 5,191.29-7,785.86-1,493.78

Finding the Fourth Proportional to 5,191.29, 7,785.86 and 1,493.78

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Solution

The fourth proportional to 5,191.29, 7,785.86 and 1,493.78 is: 2,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.29 : 7,785.86 = 1,493.78 : x
  2. Step 2: Convert to fraction form
    5,191.29/7,785.86 = 1,493.78/x
  3. Step 3: Cross multiply
    5,191.29x = 7,785.86 × 1,493.78
  4. Step 4: Simplify right side
    5,191.29x = 11,630,315.55
  5. Step 5: Solve for x
    x = 11,630,315.55/5,191.29
  6. Step 6: Final answer
    x = 2,240.35

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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.