Home / 2,875.13-4,311.93-794.64

Finding the Fourth Proportional to 2,875.13, 4,311.93 and 794.64

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Solution

The fourth proportional to 2,875.13, 4,311.93 and 794.64 is: 1,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.13 : 4,311.93 = 794.64 : x
  2. Step 2: Convert to fraction form
    2,875.13/4,311.93 = 794.64/x
  3. Step 3: Cross multiply
    2,875.13x = 4,311.93 × 794.64
  4. Step 4: Simplify right side
    2,875.13x = 3,426,451.20
  5. Step 5: Solve for x
    x = 3,426,451.20/2,875.13
  6. Step 6: Final answer
    x = 1,191.76

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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.