Home / 7,811.29-10,779.83-4,274.52

Finding the Fourth Proportional to 7,811.29, 10,779.83 and 4,274.52

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Solution

The fourth proportional to 7,811.29, 10,779.83 and 4,274.52 is: 5,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.29 : 10,779.83 = 4,274.52 : x
  2. Step 2: Convert to fraction form
    7,811.29/10,779.83 = 4,274.52/x
  3. Step 3: Cross multiply
    7,811.29x = 10,779.83 × 4,274.52
  4. Step 4: Simplify right side
    7,811.29x = 46,078,598.93
  5. Step 5: Solve for x
    x = 46,078,598.93/7,811.29
  6. Step 6: Final answer
    x = 5,898.97

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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.