Home / 5,215.94-7,823.77-1,519.19

Finding the Fourth Proportional to 5,215.94, 7,823.77 and 1,519.19

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Solution

The fourth proportional to 5,215.94, 7,823.77 and 1,519.19 is: 2,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.94 : 7,823.77 = 1,519.19 : x
  2. Step 2: Convert to fraction form
    5,215.94/7,823.77 = 1,519.19/x
  3. Step 3: Cross multiply
    5,215.94x = 7,823.77 × 1,519.19
  4. Step 4: Simplify right side
    5,215.94x = 11,885,750.23
  5. Step 5: Solve for x
    x = 11,885,750.23/5,215.94
  6. Step 6: Final answer
    x = 2,278.74

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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.